Develop Bugs

A Day and a half use out of an evo with FRESH rom? HOW?!?!?

Since my inquiry was ignored in the original post, I'm going to ask it here, HOW are these claims of a day and a half worth of battery life achieved with the fresh rom?
I just installed it last night with a clean wipe (including dalvik cache) and even erased the battery stats coming from Baked Snack with the kernel listed as "best battery" (which I can't get more than 12 hours out of with hardly any use).
I see claims of a day and a half so I want to achieve that as well, so help me out, here's what's going on with my evo
1. mobile data, 4g, wi-fi were all off. had no need for them for most of the day, only turned on 3g for about 20 minutes when I walked to the store.
2. GPS and bluetooth were off all day
3. listened to a couple of mp3s
4. about half an hour MAX of phone calls
5. about 50 text messages
6. played scrambled net for a while
7. haptic feedback is off, brightness is at around 30%, live wallpaper wasn't used, auto-sync is disabled on EVERYTHING, e-mail is set to once a day, google talk isn't set to auto start, using overclock widget to UNDERclock my CPU, using juice defender to turn off mobile data when my screen is off
I have screen shots posted, let me know where the problem is coming from!
here's my uptime and awake time
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here's the real life battery life I'm getting and where it's going
For comparisons sake, here's when I used Baked Snack
^^^in all fairness, 8 of those hours were of me SLEEPING and the phone just sitting there.
You can tell I wasn't doing anything because the highest percentage of the battery usage was "Cell Standby" and "Phone Idle"
so can anyone help me get some better battery life?

the_hustleman said:
Since my inquiry was ignored in the original post, I'm going to ask it here, HOW are these claims of a day and a half worth of battery life achieved with the fresh rom?
I just installed it last night with a clean wipe (including dalvik cache) and even erased the battery stats coming from Baked Snack with the kernel listed as "best battery" (which I can't get more than 12 hours out of with hardly any use).
I see claims of a day and a half so I want to achieve that as well, so help me out, here's what's going on with my evo
1. mobile data, 4g, wi-fi were all off. had no need for them for most of the day, only turned on 3g for about 20 minutes when I walked to the store.
2. GPS and bluetooth were off all day
3. listened to a couple of mp3s
4. about half an hour MAX of phone calls
5. about 50 text messages
6. played scrambled net for a while
7. haptic feedback is off, brightness is at around 30%, live wallpaper wasn't used, auto-sync is disabled on EVERYTHING, e-mail is set to once a day, google talk isn't set to auto start, using overclock widget to UNDERclock my CPU, using juice defender to turn off mobile data when my screen is off
I have screen shots posted, let me know where the problem is coming from!
here's my uptime and awake time
here's the real life battery life I'm getting and where it's going
For comparisons sake, here's when I used Baked Snack
^^^in all fairness, 8 of those hours were of me SLEEPING and the phone just sitting there.
You can tell I wasn't doing anything because the highest percentage of the battery usage was "Cell Standby" and "Phone Idle"
so can anyone help me get some better battery life?
Click to expand...
Click to collapse
There is definitely something eating your battery because this is bad beyond bad. I would flash a rom and not install anything at all. Set up your email accounts and use as normal but install nothing else and restore nothing else. See what battery life you get then. After that you can start installing apps back one by one and monitor how they effect your battery life.

did u do a full wipe and clean install? i cleared my stuff twice before i flashed and i get like at least 20 hrs...

Use Spare Parts and check partial wake usage, android system should be on top. If you still cannot find the app that is draining you, then flash a custom kernel that supports underclocking/overclocking and use setCPU app to underclock when your screen is off. With moderate use I go from 8am until 11-12 at night with about 20% of battery left.
Sent from my PC36100 using Tapatalk

are you on a stock battery? using fresh rom with kings kernel i can get a day and a half with much more usage then you have. i say reflash everything, radio, rom, kernel, and dont restore any apps at all. run it for a day without even installing any apps (except setcpu or overclock widget) and see what you can get out of it, maybe ur evo is malfunctioning?

Went to spare parts. UID 10011 is on top and slightly more than android system which is second. What is UID 10011?
Sent from my PC36100 using XDA App

davebu said:
are you on a stock battery? using fresh rom with kings kernel i can get a day and a half with much more usage then you have. i say reflash everything, radio, rom, kernel, and dont restore any apps at all. run it for a day without even installing any apps (except setcpu or overclock widget) and see what you can get out of it, maybe ur evo is malfunctioning?
Click to expand...
Click to collapse
ok, I'll nandroid it and try that approach.
so completely wipe it again (cache, dalvik cache, battery stats), flash the rom again, and install overclock widget only?
I'll try that - can't hurt nothin...

you should be able to get at least 7 hours of talk time with everything stock, if half an hour ate up 40% of your battery then you have something very wrong with your phone/ROM

and be careful wiping battery stats. Make sure the phone is at 100% charge (not just green light but actual 100%) and THEN wipe the stats. Then let the battery drain to 0 (to the point it shuts down on its own), and then charge back to 100%
That should get the battery back in line if you wipe the stats.

the_hustleman said:
ok, I'll nandroid it and try that approach.
so completely wipe it again (cache, dalvik cache, battery stats), flash the rom again, and install overclock widget only?
I'll try that - can't hurt nothin...
Click to expand...
Click to collapse
Let me know what your findings are if this helps. I'm in the same boat your in, installed FRESH 3.2 and I'm also not getting these battery improvements everyone is talking about. I'm still using the original battery from when I bought the phone which was on release day.

i wouldnt expect a day and a helf with use. While some are reporting getting it many others dont. "moderate" to "heavy" use varies by person. Many of these reporting extremly lng battry life that detail there usage to me is very light usage.
with that said you are getting pretty bad battery life. Instead of or before you go the route of taking a week to sintall your apps so you can check each one you may invest in system moniter. if you get the purchased version it has the ability to show you history of which apps are using the most battery power.
Also while some people may take offense to this i put a lot of the battery statistics into the sketchy at best catagory. It is similar to benchmarks with computer geeks. We will run benchmarks constantly trying to figure out what gives the highest score. and then we normally exagerate it a bit when we brag because we want to sound like we have the best rig.
now i am not saying everyone is but i would take most of the outragous battery stats with a grain of salt. if someon tells you they get 50 hours with moderate usage regularly. Their definition of moderate usage is probably what most consider as light usage. (ie moderate usage for 2-3 hours of the 50)

would using sense over launcher pro eat up more battery life or vice versa?

I have the Fresh 3.2 ROM flashed last night (technically early this morning). With the stock 2.2 ROM my battery died in about 5 to 6 hours, with Fresh 3.2 its already been 8 hours and my battery is at 29%. I love it! I have spare batteries and chargers everywhere, and I have auto sync on with moderate use today including a few video calls via Qik (not very long, a couple of minutes at best). If it get's better over time I will really be in love, though I wouldn't mind getting a full 24 hours out of a battery.

kudosmog said:
and be careful wiping battery stats. Make sure the phone is at 100% charge (not just green light but actual 100%) and THEN wipe the stats. Then let the battery drain to 0 (to the point it shuts down on its own), and then charge back to 100%
That should get the battery back in line if you wipe the stats.
Click to expand...
Click to collapse
Does the phone have to be on or off when recharging?
Sent from my PC36100 using XDA App

It also depends on how they are defining a day and a half. Are they talking about 36 hours of usage without being on a charger? I don't know many phones that can do that. Hell, I don't know anything electronic that could go 36 hours without some sort of power/fuel.
If they are talking about an 8 hour shift one day, then going home to bed, then waking up and going to work, and making it through another 4 hour shift, I can believe that. If they don't touch the phone hardly at all between the two work shifts (as I usually don't when I'm at home), I can see that.
My Evo on Fresh 3.2 only dropped 20% last night, as I left it in the living room when I went to bed and forgot to charge it. It was at 40% when I woke up, and I'd venture to say that under normal usage, I could get another 4 hours out of it when it's at 40%.
I also have netarchys 4.1.9 kernel, and setcpu set to set the processor to 245 mhz when the screen is off.

the_hustleman said:
ok, I'll nandroid it and try that approach.
so completely wipe it again (cache, dalvik cache, battery stats), flash the rom again, and install overclock widget only?
I'll try that - can't hurt nothin...
Click to expand...
Click to collapse
Ok, so i tried completely wiping device cleared all cache and installed minimal apps. I will see how goes. The funny thing is that I took it off the charger around 5pm and when I looked at my battery status it says it's only been 53miin since unplugged and I'm already down to 68% of battery left. what's the deal? Maybe I have a bum battery already. Who knows. I'm going to drain it all the way down and see if that makes any diff.
EDIT: ok, I just realized that the timer reset after I rebooted my device. I forgot that it does that. Also I just wanted ton add that I did not do any type of restore from a backup program.

How is your signal strength where you are?? Having a weak signal will DESTROY your battery (trust me my battery goes down more than 10%/hr in a ****ty signal area but when I get to a good signal area it barely drops 3-4% (and this with bluetooth streaming music the whole hour)).

ok today I reflashed the phone, didn't install any apps, went to work, had my phone on airplane mode for a while because signal strength SUCKS at my job so it drains my battery very quickly, but I ended up getting only 10 hours out of the battery before I had to switch.
I didn't install ANYTHING and still the same results.
I'm convinced, the EVO just doesn't have great battery life that people claim, it's decent for a smartphone, but nothing spectacular AT ALL!
kudosmog said:
and be careful wiping battery stats. Make sure the phone is at 100% charge (not just green light but actual 100%) and THEN wipe the stats. Then let the battery drain to 0 (to the point it shuts down on its own), and then charge back to 100%
That should get the battery back in line if you wipe the stats.
Click to expand...
Click to collapse
ok, see no one told me this part.
I've just read many times that if you've flashed a lot of roms, you should wipe the battery stats
strikeIII said:
Let me know what your findings are if this helps. I'm in the same boat your in, installed FRESH 3.2 and I'm also not getting these battery improvements everyone is talking about. I'm still using the original battery from when I bought the phone which was on release day.
Click to expand...
Click to collapse
same here, I'm using a stock battery (have an extended life battery on the way) and there's no noticeable change in my battery life
omegasun18 said:
i wouldnt expect a day and a helf with use. While some are reporting getting it many others dont. "moderate" to "heavy" use varies by person. Many of these reporting extremly lng battry life that detail there usage to me is very light usage.
Click to expand...
Click to collapse
yeah, I'll read where someone says "I get 48 hours with moderate use!" but when you find out what they did, a couple of THREE MINUTE PHONE CALLS and a few texts, MAYBE 5 minutes of web surfing, that's it. in 2 days that's all they did with their EVO - and then I think WTF IS THE POINT?!?!? Why would you spend 200 dollars on an EVO when you could have gotten a HERO for 30 bucks that does all those things you did in that 48 hours?
with that said you are getting pretty bad battery life. Instead of or before you go the route of taking a week to sintall your apps so you can check each one you may invest in system moniter. if you get the purchased version it has the ability to show you history of which apps are using the most battery power.
Click to expand...
Click to collapse
that sounds interesting, but how much is it?
Also while some people may take offense to this i put a lot of the battery statistics into the sketchy at best catagory. It is similar to benchmarks with computer geeks. We will run benchmarks constantly trying to figure out what gives the highest score. and then we normally exagerate it a bit when we brag because we want to sound like we have the best rig.
now i am not saying everyone is but i would take most of the outragous battery stats with a grain of salt. if someon tells you they get 50 hours with moderate usage regularly. Their definition of moderate usage is probably what most consider as light usage. (ie moderate usage for 2-3 hours of the 50)
Click to expand...
Click to collapse
I agree, either
A) me, my fiancé, my cousin, my 3 friends with EVO's ALL have defective units
B) the people who claim "moderate" usage are REALLY only having extremely light, barely any usage
or
C) these people are just telling boldface lies.
I've said this before on sprintusers and people argued with me all day saying I'M lying, but when you look at their screen shots showing this type of time, I poke holes all through their arguments, I've seen one where the poster claimed to have made a total of 40 minutes of calls, but there was no indication of voice calls in his screen shot, and android system only took up about 18% of the battery with cell idle and standby taking up the bulk of the juice. That alone tells you that the phone isn't doing anything and isn't being used.

Droga said:
How is your signal strength where you are?? Having a weak signal will DESTROY your battery (trust me my battery goes down more than 10%/hr in a ****ty signal area but when I get to a good signal area it barely drops 3-4% (and this with bluetooth streaming music the whole hour)).
Click to expand...
Click to collapse
when I'm at work signal strength SUCKS, so I keep the phone on airplane mode
when I'm home however, signal strength fluctuates between 3 and full bars

First off grab baked snack or CM6 both these roms have given me the best battery life of all time, then grab juice defender and setcpu, make sure everything is wiped and you are not restoring any apps that might potentially eat your battery, set setcpu to 245 when screen is off and let juice defender set up its own settings.
Just with this i had my phone off a charger for 16 hours straight and am only now at 50% this is with regular use for me which means on average texting all day (i am 17 its what i do XD ) a few brief phone calls and maybe an hour worth of data/wifi usage
there must be an app doing this because i had the same problem as you on baked snack even until i wiped everything and started new.
Currently im running cm6 and during my first few hours of school i wont touch my phone at all and it will maybe...mayyyybe drop 4-5 percent
Hope this helped anyway

[Q] EXTREMELY horrible battery life

I've read on many reviews (Gizmodo, Engadget, CNet, etc) that the battery on the DInc is not that great, but mine is incredibly... bad. Examples:
I browse the web (mostly mobile websites with not many images, flash etc) for ~20 mins and battery life decreases by 20%
I leave the phone ON overnight without charging and it's at 2% in the morning. When I went to sleep it was at 60%
I turn the phone OFF overnight without charging and it dies (I couldn't turn it on, had to charge for 15 mins even to turn on). When I went to sleep it was at 30%
I've also heard both that ATK is useless and that it's a gift from God for battery life. I'm running the Pro version killing every 30min and it's not helping that much (maybe 30 mins)
Is my battery defective, or are other users also experiencing this bad of battery life? My DInc is SLCD, running UberZ RC1.2 with stock battery.

Im guessing you havent had your incredible for more than five months right? Considering htc didnt start making them until the late summer. Anyways I do know that desire z ports often use up quite a bit of battery in their displays. However considering you left it on overnight and it was nearly dead I dont think it was that. Something you can try is going in the advanced menu on clockwork mod and erasing battery stats. This seems more like a defective battery though. New batteries can be bought for fairly cheap and if you do decide to get a new one you can get them for pretty cheap. Touchpro 2 batteries supposedly work with the incredible as well

Make sure you turn off GPS, WiFi, Bluetooth, etc. when not in use.

kaiserII101 said:
Im guessing you havent had your incredible for more than five months right? Considering htc didnt start making them until the late summer. Anyways I do know that desire z ports often use up quite a bit of battery in their displays. However considering you left it on overnight and it was nearly dead I dont think it was that. Something you can try is going in the advanced menu on clockwork mod and erasing battery stats. This seems more like a defective battery though. New batteries can be bought for fairly cheap and if you do decide to get a new one you can get them for pretty cheap. Touchpro 2 batteries supposedly work with the incredible as well
Click to expand...
Click to collapse
Yeah, I've had it for about a month. I will reply after erasing battery stats and trying it out. I'm not sure that I would use a Touch Pro 2 battery - seems like too much of a risk. However, I have seen Evo Batteries on Amazon that supposedly work with the Dinc. Do they?
If it helps, I use widget locker, with: extended controls, fancy widget, nexus revamped (with a lot of spawns on slow) and 3 sliders.
Keyboards said:
Make sure you turn off GPS, WiFi, Bluetooth, etc. when not in use.
Click to expand...
Click to collapse
I have, I barely use BT or GPS so they're almost always off. I only turn GPS on when I'm charging and I'm using location based apps. 3G is off at home and Wifi is off on the road / at school and when I'm not using the phone.

What you might want to try doing is uninstalling widget locker and charging your phone all the way up. If after uninstalling widget locker the drain is still significant it may be the battery. And from what I read, the evo battery works with the incredible, it just makes the back cover fit a bit more tight.

kaiserII101 said:
What you might want to try doing is uninstalling widget locker and charging your phone all the way up. If after uninstalling widget locker the drain is still significant it may be the battery. And from what I read, the evo battery works with the incredible, it just makes the back cover fit a bit more tight.
Click to expand...
Click to collapse
OK, I've wiped battery stats, though it's only been a few mins so I can't tell yet. I'll reply in a couple of days. Also, can I just disable WidgetLocker instead of uninstalling it?
I also have a silicone case that hooks on the front edges, will an Evo Innocell (with back cover) mess with that?

I dont think an evo back cover would work for the incredible as they are not the same dimensions.
And btw touchpro 2 battery will work with the incredible
http://androidforums.com/incredible-accessories/72006-fyi-touch-pro-2-battery-works-incredible.html
Heres one for $5 if youre thinking about it.
http://www.dealextreme.com/details.dx/sku.35632

I just moved to an Incredible from my Droid 1 and the battery life is horrible compared... I got it as a replacement for having so many issues with my Droid but the battery life is almost unusable I'm running CM 6.1 and I wiped my battery stats, drained the battery then let it charge overnight powered off and I still get really bad life... I think a lot of it may have to do with the stock 1300mAh battery compared to the Droid having 1500mAh but I'm not sure... I'm considering the 3500mAh sedio battery but $70 bucks is a bit steep atm

kaiserII101 said:
I dont think an evo back cover would work for the incredible as they are not the same dimensions.
And btw touchpro 2 battery will work with the incredible
Heres one for $5 if youre thinking about it.
Thanks for the great find, though I was thinking about maybe one of those seidio 3500's. Though since it's so cheap, I'll probably buy it
nagmier said:
I just moved to an Incredible from my Droid 1 and the battery life is horrible compared... I got it as a replacement for having so many issues with my Droid but the battery life is almost unusable I'm running CM 6.1 and I wiped my battery stats, drained the battery then let it charge overnight powered off and I still get really bad life... I think a lot of it may have to do with the stock 1300mAh battery compared to the Droid having 1500mAh but I'm not sure... I'm considering the 3500mAh sedio battery but $70 bucks is a bit steep atm
Click to expand...
Click to collapse
I've seen one on amazon for ~$25. Not seidio though. Reviews were meh.
I don't think its the 1300 mah vs 1500 mah. That's less than 20% (so like 10 hrs vs 12 hrs).
Click to expand...
Click to collapse

Didnt see the part about disabling widget locker, sorry.
Yes you probably can disable it just make sure it is definitely not running.

pianoplayer said:
I've read on many reviews (Gizmodo, Engadget, CNet, etc) that the battery on the DInc is not that great, but mine is incredibly... bad. Examples:
I browse the web (mostly mobile websites with not many images, flash etc) for ~20 mins and battery life decreases by 20%
I leave the phone ON overnight without charging and it's at 2% in the morning. When I went to sleep it was at 60%
I turn the phone OFF overnight without charging and it dies (I couldn't turn it on, had to charge for 15 mins even to turn on). When I went to sleep it was at 30%
I've also heard both that ATK is useless and that it's a gift from God for battery life. I'm running the Pro version killing every 30min and it's not helping that much (maybe 30 mins)
Is my battery defective, or are other users also experiencing this bad of battery life? My DInc is SLCD, running UberZ RC1.2 with stock battery.
Click to expand...
Click to collapse
Don't run ATK. Android manages apps by itself. There's a whole lifehacker article on it.
Sounds like a run-away app.
Hmm, turn your screen off and let your phone sit for 5 mintues. Go into Settings > About Phone > Battery > Compare uptime vs awake. They should be AT LEAST 5 minutes apart.
If they're not, go to the market and install "Watchdog Task Manager" (<--this is NOT the same as ATK, again, lifehacker article on it) to monitor rouge apps.
Hope this helps!

gmichaelow said:
Don't run ATK. Android manages apps by itself. There's a whole lifehacker article on it.
Sounds like a run-away app.
Hmm, turn your screen off and let your phone sit for 5 mintues. Go into Settings > About Phone > Battery > Compare uptime vs awake. They should be AT LEAST 5 minutes apart.
If they're not, go to the market and install "Watchdog Task Manager" (<--this is NOT the same as ATK, again, lifehacker article on it) to monitor rouge apps.
Hope this helps!
Click to expand...
Click to collapse
My phone has been sitting and charging for ~2 hours, but up - awake = 5:12. Is it normal?
Great work, by the way.

There is no normal.
Up time is the elapsed time since you turned your phone on. (i.e. after the phone was completely off, not just screen off/sleep mode).
Awake time is suppose to only be the time your phone was actively being used (i.e. screen on).
So, Up time minus Awake time should equal the time your screen has been off, (i.e. asleep).
If Up time and Awake time are equal, and you've had the screen turned off (i.e. asleep) for part of that time, then you have some app that's staying active durning sleep mode.
________________________________
Unrevoked forever
SkyRaider Sense 3.5
Radio 2.15.00.11.15

rigman said:
There is no normal.
Up time is the elapsed time since you turned your phone on. (i.e. after the phone was completely off, not just screen off/sleep mode).
Awake time is suppose to only be the time your phone was actively being used (i.e. screen on).
So, Up time minus Awake time should equal the time your screen has been off, (i.e. asleep).
If Up time and Awake time are equal, and you've had the screen turned off (i.e. asleep) for part of that time, then you have some app that's staying active durning sleep mode.
________________________________
Unrevoked forever
SkyRaider Sense 3.5
Radio 2.15.00.11.15
Click to expand...
Click to collapse
I might reboot when I go to sleep tonight and do nothing on the phone, then check uptime vs awake when I wake up.

1300 Mah battery is not acceptable for a phone of this caliber. There are alternative options for battery's. I use setcpu to underclock the proc and I've seen a dramatic increase in battery life.
Sent from my ADR6300 using XDA App

MagnaCore said:
1300 Mah battery is not acceptable for a phone of this caliber. There are alternative options for battery's. I use setcpu to underclock the proc and I've seen a dramatic increase in battery life.
Sent from my ADR6300 using XDA App
Click to expand...
Click to collapse
I've been using Setcpu as well, with 998 mhz while charging, 245 when screen off, 245-520 when hot or <20%, and 245-850 otherwise.
Agreed about the battery, HTC and VW probably want to force you to spend more on extended batteries.
Too bad, otherwise it'd be a perfect phone.

HTC usually seems to skimp on the battery. It really hurts their reviews but I suppose they can save costs and assume people can always buy an aftermarket battery. I don't agree with it but it's their business.
Anyway, that does sound like abnormally bad battery life, but I have a question - are you in a poor service area? If so, the radio might be working extra hard to acquire a signal. Even when I had my dumb phone Samsung alias (which had decent dumbphone battery life) I would experience complete battery drain if I left it in my poor coverage basement overnight.
Also, when you're browsing the web and such do you use wifi or 3g? I notice that when I continuously surf with 3g the phone starts to get warm, especially in mid-poor coverage areas. When the phone gets hot the battery gets hot, and when the battery gets hot it drains much much quicker. Of course, high power usage generates more heat so I'm inclined to believe our 3g radio consumes way more battery than our wifi radio.
Over the months I've combatted poor battery life by doing the following:
1. Purchase aftermarket batteries. I've fallen into HTC's trap. I bought an evo battery which can last me of 6-7 hours of wifi awake time and 4-5 hours of 3g awake time. I also purchased the extended 2150 battery from Verizon which I can get up to 10 hours of wifi surfing and 5-6 hours of 3g surfing. Back when I was on stock 1300 I would get 3-4 hours wifi surfing and 2-3 hours 3g surfing.
2. Install an undervolted kernel, if you're into that sorta thing. One of the main reasons I'm able to obtain the numbers above is due to my kernel which undervolts the processor. I use adrynalyne's experimental undervolted kernel and it works without a hitch. I use it in conjunction with setcpu so I can have a screen off profile which underclocks the processor to 128-384MHz while I'm not using it. The only caveat to using this kernel is you can only use the conservative CPU governor. This means lower clocked speeds will be preferred as the CPU actively scales itself, and will take longer to ramp up to the higher speeds. But we're talking about maximizing battery life so that isn't necessarily a bad thing.
3. Try to keep screen brightness down, minimize usage of other radios (Bluetooth, GPS). Sounds like you already do this though. Rogue apps have also been discussed but if awake time != uptime then that's usually not the case.
As also prevoiously mentioned, it is possible you have a defective battery and should go about getting a new one from them though I'm not sure how that process goes... someone here is bound to know though.
Sent from my Droid Incredible using the XDA app.

Div033 said:
HTC usually seems to skimp on the battery. It really hurts their reviews but I suppose they can save costs and assume people can always buy an aftermarket battery. I don't agree with it but it's their business.
Anyway, that does sound like abnormally bad battery life, but I have a question - are you in a poor service area? If so, the radio might be working extra hard to acquire a signal. Even when I had my dumb phone Samsung alias (which had decent dumbphone battery life) I would experience complete battery drain if I left it in my poor coverage basement overnight.
Also, when you're browsing the web and such do you use wifi or 3g? I notice that when I continuously surf with 3g the phone starts to get warm, especially in mid-poor coverage areas. When the phone gets hot the battery gets hot, and when the battery gets hot it drains much much quicker. Of course, high power usage generates more heat so I'm inclined to believe our 3g radio consumes way more battery than our wifi radio.
Over the months I've combatted poor battery life by doing the following:
1. Purchase aftermarket batteries. I've fallen into HTC's trap. I bought an evo battery which can last me of 6-7 hours of wifi awake time and 4-5 hours of 3g awake time. I also purchased the extended 2150 battery from Verizon which I can get up to 10 hours of wifi surfing and 5-6 hours of 3g surfing. Back when I was on stock 1300 I would get 3-4 hours wifi surfing and 2-3 hours 3g surfing.
2. Install an undervolted kernel, if you're into that sorta thing. One of the main reasons I'm able to obtain the numbers above is due to my kernel which undervolts the processor. I use adrynalyne's experimental undervolted kernel and it works without a hitch. I use it in conjunction with setcpu so I can have a screen off profile which underclocks the processor to 128-384MHz while I'm not using it. The only caveat to using this kernel is you can only use the conservative CPU governor. This means lower clocked speeds will be preferred as the CPU actively scales itself, and will take longer to ramp up to the higher speeds. But we're talking about maximizing battery life so that isn't necessarily a bad thing.
3. Try to keep screen brightness down, minimize usage of other radios (Bluetooth, GPS). Sounds like you already do this though. Rogue apps have also been discussed but if awake time != uptime then that's usually not the case.
As also prevoiously mentioned, it is possible you have a defective battery and should go about getting a new one from them though I'm not sure how that process goes... someone here is bound to know though.
Sent from my Droid Incredible using the XDA app.
Click to expand...
Click to collapse
My signal is 3 to 4 bars on a 4 bar meter. Can you recommend a good undervolting Sense kernel?

Temp >50c 499/245
Screen off 245/245
Charge/full 998/245
Batt { 25 460/245
Batt [ 50 998/245
Batt{ 100 998/245
All are set to ondemand except charge is perfomance. Looking at this its nothing special but I do get a good charge from this setup
Sent from my ADR6300 using XDA App

pianoplayer said:
My signal is 3 to 4 bars on a 4 bar meter. Can you recommend a good undervolting Sense kernel?
Click to expand...
Click to collapse
I definitely stand behind adrynalyne's experimental undervolted. You can find a link in the kernel thread on the android development section of this board. He makes a sense and AOSP version. I've tried some of the newer ones like Chad's but I love the longevity and stability of adrynalyne's too much to live with the switch. As aforementioned, if you decide to use setcpu, make sure to only use the conservative governer. Ondemand will cause it to freeze! Otherwise it's rock solid.
Sent from my Droid Incredible using the XDA app.

Wtf new battery

I bought new 3500 battery and I'm using sbc kernel. I am getting same use time as stock. Wtf is goin on?
Sent from my MIUI powered Evo

What sbc kernel are you using? I use nets 4.3 bfs sbc more havs and I get great battery life.
Sent from my PC36100 using XDA App

Recalibrateb ur battery and wipe ur battery stats
Sent from my PC36100 using Tapatalk

nzaw4 said:
Recalibrateb ur battery and wipe ur battery stats
Sent from my PC36100 using Tapatalk
Click to expand...
Click to collapse
This.
Also when it's green doesn't mean it's fully charged.
Sent from my PC36100 using XDA Premium App

derekfaircloth said:
I bought new 3500 battery and I'm using sbc kernel. I am getting same use time as stock. Wtf is goin on?
Sent from my MIUI powered Evo
Click to expand...
Click to collapse
theres 2 main questions, are you using sbc or a wall charger and two, who makes the battery

and if its a non-seidio, some of them just plain suck. i've bought 4 different ones from ebay/amazon only one actually works well after calibration and many cycles of usage.

I am usung netarchy sbc
Sent from my MIUI powered Evo

I have alao reset battery stats
Sent from my MIUI powered Evo

You need to condition your battery
I've been dealing with this for ever and I thin kI finally haqve a routine figured out that is getting me CM7 like battery life on a Sense ROM.
1st, I've had the Sedio 3500 for a few months, and like you, I was getting ridiculous drain, until I started sdoing some reading and experimenting.
Here's what I do.
First, off, I have GPS, WIFI and Data disable all the time, unless I need one of them, and then I turn off again when I'm done. I keep my screen off all the time, unless I'm using the phone. I also only use minimal widgets. Calender, Fany Widgets Weather and Forcast, Messages widget, the Beautiful toggle widget for silence and my MIUI Music player on 3 screens, using Rosie. The other 4 screens are just empty.
Second, as for the battery itself, charge the phone for about 8 hrs, and this is the HTC method, unplug it, turn it off, and charge it for another hour, while off.
Unplug it, turn it on for 2 minutes, then power down and plug it in for another hour.
Now, before powering I up, I do the Hoodoo-voodoo-like 10 time unplug thing.
Basically, unplug, light goes off. Plug it in, light is red, wait til it turns green, unplug it and do this 10 times.
Reboot to recovery, wipe battery stats, power up, all while plugged in, and once fully booted, unplug.
I did this today, using the new Koni 3, with Netarchy 4.3.2 SBC HAVS, and riding then used the phone pretty steadily to play Klondike, text, etc an an hour later was just dropping to 99%.
THAT is pretty good, compared to what it used to be like, when it would drop about 1 percentile per minute, even when it was in sleep mode.

Reconditioning is not going to work when you buy a crappy battery. Someone said voodo? You're kidding, right?
Please understand there is no regulation that prevents people from stating their cheap batteries on eBay are 9800mAh but only providing 1000.
I bought 1500mAh eBay batteries that are only 900mAh, verified with equipment.
Check www.batteryboss.org to see what I'm talking about.
Best thing to do? Buy a $1 battery wall charger, two OEM/non-generic htc batteries and carry in your wallet. I wouldn't be surprised if your 3500mAh battery actually packs less juice than the original battery. Oh and your phone is looking like a brick for nothing.

yeah this is why i asked, if you bought a very cheap extended battery, well its rating is different than what it is providing you with

I think I have battery problems solved; Just turn Data off when you're not using it. My phone has been off the charger since Friday night @ 6:30pm. Now it's Sunday @ 9:30am. That's 39 hours and I'm sitting at 63% and I've been texting, making calls, playing a few games, and anytime I need data, I just turn it back on til I'm done and then back off again. That's the only thing I'm doing different now, and before I made that little change, my battery was a good or bad as anyone else's

HipKat said:
I think I have battery problems solved; Just turn Data off when you're not using it. My phone has been off the charger since Friday night @ 6:30pm. Now it's Sunday @ 9:30am. That's 39 hours and I'm sitting at 63% and I've been texting, making calls, playing a few games, and anytime I need data, I just turn it back on til I'm done and then back off again. That's the only thing I'm doing different now, and before I made that little change, my battery was a good or bad as anyone else's
Click to expand...
Click to collapse
When I am home, I have WiFi enabled all the time, no 3G/4G. I heard WiFi is better(with good signal) for your battery than 3G enabled. Is this true? My battery lasts about 7-8 hrs of moderate-heavy usage.
Also, here's a thing with all of you trying to tweak your battery to get best performance. From my own experience, I am never a step or two away from a charger be it while I'm on my computer at work, at home or in the car. So what good is it to have the phone out of the charger for days?

I understand WiFI is better, too, from what I've read.
Also, if I can find it, I found a thread on androidfrums from htc that recommends you let your battery drain to below 50% before charging it.
Like you, I have chargers all over, so it's not a big deal, but to be at where I am now, with this experiment on turning data off is simply amazing to me.
Almost 42 hours and at 59%

HipKat said:
Almost 42 hours and at 59%
Click to expand...
Click to collapse
That is definitely a huge performance improvement but I wonder what's happening with all your apps that need the data sync in the background. I have apps like Pulse, Facebook, K9, Handcent, etc that update every couple of hours or have "push" enabled. What is the trick to allow 3g, 4g, wifi to be enabled automatically only when sync is required and then disabled?

Good question.
All I use is the weather bug and Fany Widgets weather, ad far as widgets that need updating. I think, once they try to update and can't connect, they "freeze" for lack of a better word, until you reconnect and manually update.
It's a little bit of a pain, but for this kind've battery life, I'm not gonna complain

I think what would work is an app that puts the phone in "Airplane Mode" (bad Moment memories ), but allows the calls to come thru. This way there's absolutely no Internet traffic but your Evo is still usable as a phone.

That's probably, basically what I'm doing, but like you, coming from the Moment, Airplane Mode is a bad word....

Ughh battery drain definitely too fast.

I feel like I make a thread for each phone I go through. First Blackberries, then Droid X, now Galaxy Nexus.
I am getting pretty horrible battery drain that is definitely worse than others' Nexuses. I have gone to the extended battery now for a few days, yet in the morning, when I unplug from charger (says 98% but charged?), with brightness only a quarter of the way up from lowest, I can literally watch the percentage (battery number mod in corner) drop one-by-one each minute or a few...So if I am actually using the phone, you can imagine it drops pretty fast. Yesterday, with very very moderate use the phone was still dead within 5-6 hours. It was at the mid-80s within an hour or more. Again, with moderate use.
It is stomach-dropping watching the percentage number just go down and down. Yet my friend's Gnex using the extended battery his first day did not hit 85% yesterday until 5+ hours later. The battery stats page on mine shows nothing with high numbers except Screen and Android OS, so I assume no apps are draining it. I am rooted with unlocked BL, on bigxie's deodexed ROM with softkeys mod, battery percentage mod, and power menu mod. I have 100-something apps and many widgets but no battery draining/updating ones. Others with the same ROM report fine battery.
I believe after using the ext. battery for a couple days, it should be "conditioned" if needed at all, yet I see no improvement.
I'm getting very angry watching this drop.. For example, 40 minutes off the charger with almost NO use except for turning the screen on here and there, I am at 94% battery with Screen at 46%, Android OS at 34%, Phone Idle 11%, Cell Standby 9%, and Android System 2%.
And then 1 hr 20 min in, at 88% battery with 55% Screen, 27% Android OS, 6% Phone Idle, 6% Cell Standby.
This doesn't sound normal right? Keep in mind, those numbers are with almost no phone use..very minimal settings menus visited and one update from Market.
Jesus, literally almost every time or two I turn the screen on just to check these numbers, I see the damn battery percentage drop a number. Not even using the phone how/as much as I normally would be. This is infuriating. Luckily, it doesn't seem to drain much with the screen off.

Quit checking and wait til the bug is fixed and blood pressure stabilizes?
Crazy world, ay?

Update to 4.0.2 or 4.0.3 with an improved kernel = success.
Use the phone for 1-2 weeks to stablize battery life - mine is better now than it was when I began using it. But the kernel/rom makes a big difference.

Thanks. Any suggestions on with combo to use now? 4.0.3 preferrably I guess.
Then why does my friend on totally stock 4.0.2, non-rooted have that great battery life from the first day using the extended battery?? I'm pretty much basing mine off of his and other's who are getting ridiculously long life. I never understood how it varies SO much. We should all have the same relative to usage.

just4747 said:
Thanks. Any suggestions on with combo to use now? 4.0.3 preferrably I guess.
Then why does my friend on totally stock 4.0.2, non-rooted have that great battery life from the first day using the extended battery?? I'm pretty much basing mine off of his and other's who are getting ridiculously long life. I never understood how it varies SO much. We should all have the same relative to usage.
Click to expand...
Click to collapse
No. Because no two phones are set up the same. Too many variables to say relatively same usage. For instance, when i go to bed i get 2-3 hours standby per percentage point. Not everybody is going to get that.
Crazy world, ay?

@rbiter said:
No. Because no two phones are set up the same. Too many variables to say relatively same usage. For instance, when i go to bed i get 2-3 hours standby per percentage point. Not everybody is going to get that.
Crazy world, ay?
Click to expand...
Click to collapse
Maybe, but the fact that I have no other visible outstanding draining factors, and I get no 4G at home and therefore have it set to CDMA only...I should not be seeing 1% drops almost every time I turn the screen on for more than 30 seconds. Especially with an extended battery.
God forbid I want to use GPS or 4G.

More battery life threads please.

case0 said:
More battery life threads please.
Click to expand...
Click to collapse
Wow, really? At first glance in all sub-forums I saw about two, if that. I have a legitimate concern, especially when my friend is getting about 4 times better life. Thanks for your help though in the device forum where this 'doesn't belong'.
..And over the course of only a few minutes of the screen being on maybe twice and sending one email, I saw it go from low 82-83 down to 77. ****ing awesome.

just4747 said:
Wow, really? At first glance in all sub-forums I saw about two, if that. I have a legitimate concern, especially when my friend is getting about 4 times better life. Thanks for your help though in the device forum where this 'doesn't belong'.
..And over the course of only a few minutes of the screen being on maybe twice and sending one email, I saw it go from low 82-83 down to 77. ****ing awesome.
Click to expand...
Click to collapse
You probably have a misbehaving app. Download better battery stats from the android apps and games section here at xda and let it run for a day or so and see what processes are being used the most and what your wakelocks are, etc.
Also, find a 4.0.3 rom with a kernel that can be undervolted and try that out.
Sent from my Galaxy Nexus using xda premium

joshnichols189 said:
You probably have a misbehaving app. Download better battery stats from the android apps and games section here at xda and let it run for a day or so and see what processes are being used the most and what your wakelocks are, etc.
Also, find a 4.0.3 rom with a kernel that can be undervolted and try that out.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Thank you, downloading now and will check it out.

I'll admit I'm using the GSM version so my experiences may not apply but for the first few days my battery life was utter crap.
Its been MUCH improved over the last few days, I dont have the wakelock issue and with the screen off the battery drain is literally only about 3% per hour, and thats with background data on.
YES, the screen DOES use a lot of battery, it isnt really avoidable and is somewhat expected with a 720p 4.6 inch super AMOLED screen.
The one thing I can recommend doing is finding a modded kernel and undervolting that CPU - It seems they've been really rather generous providing power to the thing, I've been able to take off at least 100-150mv across the board.

Antzor said:
I'll admit I'm using the GSM version so my experiences may not apply but for the first few days my battery life was utter crap.
Its been MUCH improved over the last few days, I dont have the wakelock issue and with the screen off the battery drain is literally only about 3% per hour, and thats with background data on.
YES, the screen DOES use a lot of battery, it isnt really avoidable and is somewhat expected with a 720p 4.6 inch super AMOLED screen.
The one thing I can recommend doing is finding a modded kernel and undervolting that CPU - It seems they've been really rather generous providing power to the thing, I've been able to take off at least 100-150mv across the board.
Click to expand...
Click to collapse
This - My battery on the stock battery on GSM sucked first few days, and I was really concerned I made a poor purchase. But with the screen on probably 5 or 6 hours of my work day it lives through the day and just enough to get home after that. I can charge it at work too, which I usually do. On my day off it survived 18 hours and still had ~20% battery life left on 4.0.3 AOKP/Francisco.Franco Kernel

From my experience, the battery life isn't bad. I did install the "extended" battery as soon as I bought the phone but is isn't much bigger than the stock battery. I am on stock rooted 4.02. With LTE off I use about 2% per hour in standby. With LTE on it is almost double that (3-4%/hour). I have several widgets running and gps enabled. (wifi when available) I can easily get a 16-18 hour day and have 50% remaining when I go to bed unles I sit around gaming for a couple hours.
I may try a new ROM tonight but I expect it will probably make things worse.

Im running a bone stock setup and im getting 12 -14 hours a day... normally I read posts like the one skiddingus posted and wonder why I never can achieve those readings so i feel your confusion . I do have 4g on and gps off screen is about 1/4 of the way up brightness wise

[Q] Horrible EVO 4G Battery Life no matter WHAT I do!

I've about had it with my EVO 4G. I can barely use the thing before the battery is down to 30% or lower. When I first unplug it in the morning, I'll browse reddit or XDA for all of 5-10 minutes and my battery will go down to 75% easily. I've tried tons of ROMs (running Energy w/Shooter Anthrax kernel as I heard it got amazing battery life) I've tried resetting the battery stats -- i've tried unplugging and replugging in the phone multiple times when the charge light is green, I've tried just about everything I can find on here dealing with battery issues and to no avail! Listed in my battery stats the only thing that's ever high is my Display usage but even factoring that in should I really only be getting an hour or two of mild internet usage before my battery is completely depleted? I can barely make it through a 6 hour work day (checking texts on breaks, light internet, maybe a 5 minute phone call) without having to recharge it in my car.
I'm open to ANY suggestions short of buying a new battery -- sadly it's not an option at the moment.

Do you keep 4G on? That drains a battery like nothing else if left on. Same with GPS, especially in Sense Roms for some reason.

Ridgeburner said:
I've about had it with my EVO 4G. I can barely use the thing before the battery is down to 30% or lower. When I first unplug it in the morning, I'll browse reddit or XDA for all of 5-10 minutes and my battery will go down to 75% easily. I've tried tons of ROMs (running Energy w/Shooter Anthrax kernel as I heard it got amazing battery life) I've tried resetting the battery stats -- i've tried unplugging and replugging in the phone multiple times when the charge light is green, I've tried just about everything I can find on here dealing with battery issues and to no avail! Listed in my battery stats the only thing that's ever high is my Display usage but even factoring that in should I really only be getting an hour or two of mild internet usage before my battery is completely depleted? I can barely make it through a 6 hour work day (checking texts on breaks, light internet, maybe a 5 minute phone call) without having to recharge it in my car.
I'm open to ANY suggestions short of buying a new battery -- sadly it's not an option at the moment.
Click to expand...
Click to collapse
i recommend using a aosp rom if battery life is a MUST. I would suggest you use Decks aosp rom with CoD tweaks Tiamat 3.7.7 and vipermod and underclock to 500 on smartass governor........all this is what you should do if you choose decks rom

Make sure your 4G is off, but Evo is known for its horrible battery but thats ridiculous. Try a new kernal to adjust to CPU settings. If that doesn't work, you might need a new battery. Evos are know for having their battery fried easily, mine fried and I had to get a new battery. :/

You should definitely make sure your 4g, Gps, Wifi, and blue tooth is off. If that does not work I would strongly suggest you downloading Cyanogenmod 7.1. When you aren't using the phone under clock it and do medium speed when you are using it. I last around 8-9 hours doing this. Hope it helps.

Okay I installed Decks Evo GB rom and the Tiamat 3.3.7 kernel. I followed the guides but couldn't seem to do the undervolting correctly with the apps i was provided...but i'll do some testing and report back!
Can someone point me in the direction of the right app for undervolting and whatnot?

Ridgeburner said:
Okay I installed Decks Evo GB rom and the Tiamat 3.3.7 kernel. I followed the guides but couldn't seem to do the undervolting correctly with the apps i was provided...but i'll do some testing and report back!
Can someone point me in the direction of the right app for undervolting and whatnot?
Click to expand...
Click to collapse
vipermod is used for undervolting http://vipermod.tiamat-dev.com/vipermod-voltage-control/

Also, it could just be that your battery is tired. Is it at all swollen, in the least bit or rock hard? It should feel firm, but give a little.
People tell me all the time, "my battery is not holding a charge", it's not designed to. But, how it releases the charhe, is another story. Obviously, it's also dependant on use. Remember, the phone is only rated at 5 hours talk time. I can't think of a time I've actually tried that, but when I have been caught on the phone for extended periods I've only gotten at most 2 hours of conversation out of a full battery.
Sent in L*W*H

I had an Evo, loved it,but the battery was trash,even when I bought my 3500 mah battery, the juice in it wouldn't last a whole day,sorry man,there's just no hope for that phone,without undervolting properly
Sent from my Desire HD using xda premium

my battery doesnt last too bad in my evo. granted not like the old days, but i do get about 12-15 hours on a 1700 mah battery and a powerskin charging case with a built in 1500 mah battery. This is in a poor service area.. constantly switching into and out of roaming. i keep 4g, wifi, mobile network all off and screen brightness at about 25%.. this is with moderate txt, some light game play, occasional turn on 3g to check email and browse web. im expecting better now thzt i am rooted with energy rom and anthrax kernel.