Develop Bugs

[Q] severe battery drain

I finally gave in and rooted my phone after researching it thoroughly. I used unrevoked to root and have flashed fresh 3.4.0.1 and netarchy 4.1.9.1 and am using set cpu, too. but my battery drain is just as bad before I rooted.
before the last OTA and before root, i could get a good 14 hours with moderate use and time without signal was lower, but now it seems my time without signal is rather high(i do get lousy coverage in my house, but outside its great), and i am sure that may be the main culprit of my battery drain. I am usually lucky to get 8 hours now.
My question is there an app that works reliably to prevent such a heavy drain because of the searching for a signal, without going straight to airplane mode. or is there something i may have missed rooting it and should check some settings? I was hoping to get it back up to 14-16 hours of battery life with rooting it.

I'm curious too and switching to wifi when wifi works helped my battery alot. But still my battery is like 12hrs then dead.
Sent from HTC EVO 4G via xda app

I havent seen an app that does this. I am curious though because unless you are in your home a significantly more amount now then you were pre root you still shouldnt see that big of a drop in battery time from signal.
how long ago since you last wiped data on the phone (probably last time you flashed)?
did you recalibrate your battery after flashing?
did you reset up all your settings to optimize battery?
are you using the HAVS version of Netarchy's kernel?
i know lots of questions but these would greatly help on what you have already tried and what you can still try.
I am also running Fresh 3.4.0.1 at the moment testing it out and i have gotten the best battery life out of it using the No HAVS netarchy kernel and the collins battery tweak set up WITH OUT setCPU. I also use the paid version of juice defender (ultimate juice) and have that set up to drop data connection while the screen is off. I am normally in the heavy user area but lately have been busy so have slipped down to the moderate level and i can still easily get all day (about 14 hours).
If you are a true heavy user i would expect 8-12 hours of battery life, mid user 12-16 and as a very light user your milage may very greatly. I am assuming since you previously fell into the 14-16 hours your a moderate user. if thats the case you should def be able to get back to that.

I did not recalibrate the battery. Is that done through the recovery menu? And should the battery be fully charged?
I am still learning about roofing and what I can do and should be doing.
Sent from my PC36100 using XDA App

Even after rooting and wiping battery stat again, it's still barely scraping 6-8 hours(with auto starts and juicer defender on)
Sent from HTC EVO 4G via xda app

Turn off latitude, in google maps.

I found this app on app brain, green power premium, (can't link since i am a new user on xda) and tried it out last nigt on a full charge before i left for work, about 13 hours later i just got the warning to plug in my phone.
basically it manages your wireless networks within your parameters you can set instead of manually turning off networks, etc...and that was one of my main issues of battery drain.

Calibrating your battery should help out.
Sent from my FroYoed Sprint Hero

How much does calibrating your battery help?
Sent from HTC EVO 4G via xda app

.....,,,,,

11 hours of moderate to light use (about 3.5 hrs of awake time) and the battery has 64% left.
so I flashed from fresh 3.4.0.1 to myn's warm TwopointTwo (RLS3)
and went from netarchy 4.1.9.1 cfs havs kernal to Kings #11 with havs and cfs.
I am using setcpu (all on demand profiles): screen off 384 max/245 min, battery <50% 614/245, temp >40.8C 614/128, and Charging/Full with 998/384
and the other app I am using is called Green Power (i am using the paid premium version) my settings on it are Managing Mobile Network Only. Keep wireless on if power is on, Keep wireless on if screen is on, Check traffic before shutting wireless off and start up at boot, Durations ON 1 min - OFF 10 min.
I am rather happy with this setup so far, and really digging myn's rom. i loved FRESH, but mostly because i spent months just using stock sense and got so use to it, switching to FRESH when I rooted felt natural.

[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.

thoughts on evo battery life?

okay i have alot of thoughts and questions on the htc evo battery life. first off i think the devs have done a great job with improving it but in reality we aren't there yet IMO. i mean coming from the hero after calibration and a 1750mAh battery i had what id call good battery life, even without the use of custom kernels or setcpu. even with calibration on the evo, the bottom line is the battery life sucks ass. i cannot even believe htc released a phone with such ****ty battery issues. ive even seen posts on here from people with extended batteries with crap battery life as well.
number 1 they should of shipped it with a higher capacity slimline battery. if it weren't for the devs here the phone would be unusable as i can remember the first time i bought the evo in july i had it for a week and got rid of it the battery was soo bad.
then we have battery mod scripts like calkins & the colin tweak that honestly never did much for my phone. then of course the much debated sbc mod that alot of people says created issues. my own take on it is it seems more of a visual effect or placebo than anything. yes it seems to hold a charge a bit longer but only when the phone is not in use. whats the sense of owning a phone such as great as the evo but be afraid to use it at all?
the reason i do not use sbc is because something to me doesn't seem right about the way it charges the battery. for example: my phone had 88% battery left before i flashed the sbc mod, then after reboot it was back to fully charged? how the hell can that be possible?
so im sorry for venting but sometimes i think i may look into a smaller android phone such as the optimus s or another hero. does the evo shift have these issues as well?
so now i ask for advice from the users that "claim" to get well over 24hrs battery life on stock batteries. im running myn's rls4 rom with the netarchy 4.2.2 /less havs/ no sbc kernel. if i choose to use setcpu and do not want to overclock what settings should work best? or did i hear that havs & setcpu do not play well together?
thanks for listening!

My biggest issue is that it's very inconsistent. I'm on MikFroyo 4.3. When I flashed this ROM I upgraded to all the newest radio, PRL, PRI, etc. It used the stock HTC #15 kernel and I was getting OUTSTANDING battery for the first 5-7 days. Then, literally overnight, my phone started losing 10% of its battery per hour while NOT IN USE. And, no, it wasn't the Up vs. Awake issue, I hadn't installed any new apps, none of that. So I "downgraded" PRI to 1.77 and STILL, absolutely horrible battery life. I've tried different kernels but nothing works. I can take my phone off the charger at 5am and be down to 15% battery by noon with LIGHT use. Signal strength isn't an issue either. It's just frustrating. I understand that these phones have large displays and constantly multi-task but you would think HTC would realize that these phones are going to be used by "power users" and plan ahead for it. But I suppose if our battery wasn't an issue we would just find something else to ***** about all day, lol.

Try miui, that rom gives me the best battery life I have ever seen.

Buff McBigstuff said:
Try miui, that rom gives me the best battery life I have ever seen.
Click to expand...
Click to collapse
+1. I get better battery life with my EVO running MIUI than I did on my Motorola Renegade clamshell phone, and probably twice the life I got with my Hero. I replace my battery with a charged one every morning and I generally still have 50-60% life left when I do that. I have gone 2 full days on a charge. I did not get this kind of battery life out of any sense ROM I have tried.

You say, MIUI, I say CM6 or 7. All depends on what you like, really in regards to ROM.
I can say that I do get better battery life on CM vs something like Myn's. My phone does stay on for more than 24hrs with somewhat light usage. That means the display is on for about 2-2:30hrs in that time while I browse the web or look at videos, but the rest of that time, it has all of its radios on and is constantly pulling down updates for Twitter, FB, NYT, and Yahoo Mail.
I haven't had any sudden drops in battery life, but if I did, I'd probably buy a new OEM or near-OEM quality battery to replace it.
My BB Tour used to do far less and yes, it lasted longer, like days without a charge, but it didn't have all this stuff going on. So yeah, comparing this large bar phone with its huge display, on-going processes is sorta unfair.
That said, I do wish it lasted 2 or 3 days with light usage.

garekinokami said:
You say, MIUI, I say CM6 or 7. All depends on what you like, really in regards to ROM.
I can say that I do get better battery life on CM vs something like Myn's. My phone does stay on for more than 24hrs with somewhat light usage.
That said, I do wish it lasted 2 or 3 days with light usage.
Click to expand...
Click to collapse
Coming from Myns rls 5 to cm7 both with stock kernels I could honestly say I see better battery life wit no OC on the CM7 rom. From my experience using warm 2.2 roms, I could get nearly 40 hours on the phone but in order for that to happen I have to barely use it. Which basically means its pointless. I mean if that's the case I might as well leave the phone turned off. Not to mention how much of your time that gets consumed searching for the perfect kernel to fit to your liking and phone.
I really do think the battery sucks on the evo but there are ways and roms to make it manageable. Sooner or later the new duel core & Tegra processors will be here soon, so bad battery life should be a thing of the past. Only because the CPU wont work so hard while sharing the strain we put on are phones. Lets just all sit tight and let technology take its coarse.
r0cky.Da.3v0.SU.-

+1 for MIUI. This is the best battery life I've ever seen. To the point where I stopped carrying my charger around. I still keep and extra battery just in case but I haven't had to use it in weeks. I get through the day easily on a full charge and I have no problem charging mine at night...I've been doing that since back in the day with flip phones. I thought everyone charged overnight while sleeping or is that not the norm?

Its also a norm for me if it needed it. Another reason I think MIUI and CM Roms are good on battery life is because ultimately they don't have 4g. I've been on the same charge all day and I still got some juice left to flash the new nightly for cm7. U gotta love it.
r0cky.Da.3v0.SU.-

Doesn't CM have 4G now? Even when I was on Sense roms I rarely ever used the 4G though. Same here though, I took my phone off the charger around 3pm, got home from work around 4am and still had plenty of juice left to back up, flash the new MIUI rom, and set it up. Seems like battery is getting better with every new release. No complaints here.

I don't get 24 hours battery, but I don't lose any battery while idle on a sense rom either. I'm on mikfroyo, with net's 4.3.1 cfs havs nosbc kernel. I'm using setcpu, and my screen off profile is 245 min and max smartass. With the screen off I barely lose any battery at all. I charge my phone periodically throughout the day, but I've gone 10+ hours off charger (with moderate usage, but no gaming or anything like that) and still had a good 40% battery left.
Sent from my blah blah blah blah

Keep in mind these phones have 8mp cameras, 1ghz processor and tons of extra memory. Basically the equivalent of the lap top computers of 2 years ago.
Sent from my DROIDX using XDA App

fachadick said:
I don't get 24 hours battery, but I don't lose any battery while idle on a sense rom either. I'm on mikfroyo, with net's 4.3.1 cfs havs nosbc kernel. I'm using setcpu, and my screen off profile is 245 min and max smartass. With the screen off I barely lose any battery at all. I charge my phone periodically throughout the day, but I've gone 10+ hours off charger (with moderate usage, but no gaming or anything like that) and still had a good 40% battery left.
Sent from my blah blah blah blah
Click to expand...
Click to collapse
Honestly anything over eight hours is descent especially if u still have juice left over. Even with that said and speaking for all the cm users, I can honestly say that netarchy kernels are definitely not needed using this rom. Even though its a great kernel, That would be kinda suicidal towards my battery life.
"Sent to you from a Gingerly Gingerbreaded Evo rockin' CM7 flashing Nightly."
-r0cky.Da.3v0.SU.-

ajones7279 said:
Doesn't CM have 4G now? Even when I was on Sense roms I rarely ever used the 4G though. Same here though, I took my phone off the charger around 3pm, got home from work around 4am and still had plenty of juice left to back up, flash the new MIUI rom, and set it up. Seems like battery is getting better with every new release. No complaints here.
Click to expand...
Click to collapse
Yeah, CM6 has wimax but CM7 doesn't. On the account of the Rom isn't stable yet.
"Sent to you from a Gingerly Gingerbreaded Evo rockin' CM7 flashing Nightly."
-r0cky.Da.3v0.SU.-

[Q] Crazy Power Consumption

Hey please don't tear my head off, Ive been looking through all the threads that I can, but haven't really found an answer.
So I got my g2 and left it stock for a couple of days and the battery did pretty good, meaning I didn't have to charge it during the day. I then rooted and flashed cm 6.1.1 stable and the battery was terrible it would drop about 1% every 5 min or worse if I was playing a game or using maps etc.
I tried switching to pershoot's cm_2632.28 012211 and it was just as bad. I then tried reverting to a back up of stock and it is still bad, I also tried RC4 and one of the nightlies, same problem. I tried wiping the battery stats with the instructions on cm's wiki, still terrible.
It is really frustrating to me and I have been looking around and it seems a lot of people are having trouble with battery life. I don't really want to buy another battery, and have tried removing anything on my phone that could use battery (widgets, apps, etc.) I also think it's odd that Cell Standby takes up the most battery.
So really what I want to know is does anyone have an idea of something for me to try? A mistake I might have made? Tip? Or am I just crazy in expecting my battery to last the day on stock?
Any help would be appreciated thanks

A lot of people who ran the cm rom seemed to have this problem I don't and I assume it only happened after cm and still occuring I think somethings wrong with cm's kernal idk but it seems like it shorts out the battery because I ran a wrong kernal on my stockrom and had terrible battery life.
Sent from George2.0 (G2)

The battery truly might be a dud... The fact that your Cell Standby consumes most of the power is probably normal because you said you stripped your phone of widgets, apps, etc.
My gf has a Wildfire and her first battery couldn't last more than a couple hours, and she's a fairly light user. She switched out the battery and now it's fine, goes for a couple days now..

I am running cm 6.1.1 oc to 1.2 I do not have this issue. Try a new battery maybe?

Which kernel are you using? And with what settings?

Kernel is toxygene #1, screen brightness auto, gps off, bluetooth off, Wifi only when I need it, "wcdma only" so I don't get any edge drop-offs, overclocked to 1.2ghz-368mhz screen on, 245mhz screen off. My battery will last 9-12 hours of normal use, that's a few calls, some txting, facebook, mp3s in the car on the drive home from work, and an hour or two of XDA. I unplug at for work at 10am, I let it die and charge from 0 every day..
Google sync every hour, weather widget sync 4 hours, facebook widget every hour. Those are all my widgets.

You should really upgrade to CM7 now. Pretty stable, and my battery life is SO MUCH BETTER. If I use my phone heavily I will lose about 30~40% during the ENTIRE DAY lol. So my battery with moderate usage will easily last 12 hours. Before I had the exact same battery life as yours.
Also, I'm using the UV kernel from pershoot.
Sent from my T-Mobile G2 running Cyanogenmod.

I'm on Virtuous v0.9.0 and I routinely get 12-15 hours a day out of my phone. That's with brightness set full, WiFi running (and usually connected), Tweetdeck, gmail, gtalk, etc all running with constant updates, etc.
If I pull it off the charger at 7a, by 7p I'm typically still around 20%, depending on how much extra use I've done (sms, voice calls, etc)

Yes, the newer version of virtuous is great on battery life and doesn't even have to be oc. I just flashed back to cm today to get everything up to date (I'm ocd like that and have to have all my ROMs current) and I too am having the cell standby issue with 70% battery after 2 hrs and light use. Just flashed the newest pershoots and letting it fully charge before I clear batt stats... will report back.
Have setcpu set to lowest with screen off and oc 1.2-346mhz
Sent from my HTC Vision using XDA App

synchronization
I am using Visionary 0.9.0 and I had lousy battery life too, and have now either turned off background synchronization or at least made it very infrequent for all my apps that use it (facebook, peep/twitter, HTC Sense, HTC Hub, News, Weather, etc. etc.)
This has made a very big difference!
The biggest difference of all came from turning off synch within the HTC Sense and HTC Hub apps. These were having trouble connecting to their servers, and were constantly tying up my 3G signal causing battery drain. This change alone has almost doubled my battery life.
I recommend you check what is using wifi/3G and how much before we assign blame to kernel or ROM.
Also, I can recommend GreenPower app which turns off connectivity automatically when it's not needed, greatly extending battery life. However after a long period of using this successfuly, I have turned it off as I started having trouble "waking" my 3G connection during the day. Hopefully future updates will help with that app.

I had the same problem with my first G2 and after complaining/convincing T-Mobile it was defective, they sent me a replacement and that problem never came up again.

Alright I feel stupid but I was charging my phone with my bluetooth charger (didn't even think about it) but now I'm using the stock charger and my battery is lasting way longer. Night and day difference. I don't exactly understand why this would make such a difference in technical terms but eitherway major facepalm.

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%
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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....