Develop Bugs

Story @ Tech Crunch.. QUESTION FOR CURRENT EVO USERS

In the story he states that the batter would last four hours? any truth to this? he also explained that there is lag in the sense?
http://techcrunch.com/2010/05/29/htc-evo-4g/

Maybe 4 hours of non-stop web browsing with the brightness all the way up while on 4G. Also, I've never had any lag with Sense.
-------------------------------------
Sent via the XDA Tapatalk App

The battery is is very poor. I'm not exactly sure why that's the case since the EVO doesn't report the screen as a large draw. For example, I unplug my EVO, connect my Bluetooth headset and listen to a podcast for 10 minutes. That drains the battery to 92% from a full charge.
You will most likely have to carry a spare battery to get through the day, with light usage.
I'm hoping its an optimization issue and they can fix the battery issue with an update. Fingers crossed.
-------------------------------------
Sent via the XDA Tapatalk App

hmm, alright i mean this is big for a person who is out 24-7. (arnt we all) i wonder if it has to do with anything similar to what the hero had when it was released.

My battery life is not perfect. But people always have this problem. I was a G1 owner and everyone complained about the battery life when it first came out. And then slowly after a mont or two everybody stopped...why? Because the battery life got better with time. From 5 hours or so to 9 or 10 hours.
Then I went to an HD2. The first week I was so scared I had made a huge mistake because the battery would last about 4 or 5 hours. After I did as suggested and let the battery completely burn out and then completely recharge for about three cycles, the HD2 had the best battery I had ever seen. i could use it for 2 days and have 60% left.
Now I have an Evo. And the first stay (with constant use) it died after about 4.5 hours. But I am going through the process of draining and then FULL recharge of 6-8 hours and I'm sure it will be fine.
People think they plug the phone in an hour or two and it says 100% and they have charged it. My opinion is that it takes the battery a while to know what 100% and 0% are on any given battery. After it cycles through a few times it will actually have a true accounting of the battery life, power consumption.
That is all my opinion and experience. I am hoping the EVO has a similar battery life to the HD2. That would be perfect for me.
EDIT: And as for lag....the guy is obviously on crack and just saying stuff to say stuff. I doubt he even has an EVO. He's reading about Sense Lag on the HD2 which there was some) and passing that information on. Anyone who actually HAS an evo have any lag? I think not.
And if he thinks an iPhone 3GS in ANY way blows the EVO out of the water...he is obviously lying. I mean based on feature set alone. There is no way the iphone can browse as fast (4G...hello), operate as fast (gee isn't that processor almost twice as fast), take better pictures? No. Have a front facing cam? No. Oh yeah...that screen size on the iPhone sure is better than the EVO. WTF?
Some people's kids.

ministersin said:
My battery life is not perfect. But people always have this problem. I was a G1 owner and everyone complained about the battery life when it first came out. And then slowly after a mont or two everybody stopped...why? Because the battery life got better with time. From 5 hours or so to 9 or 10 hours.
Then I went to an HD2. The first week I was so scared I had made a huge mistake because the battery would last about 4 or 5 hours. After I did as suggested and let the battery completely burn out and then completely recharge for about three cycles, the HD2 had the best battery I had ever seen. i could use it for 2 days and have 60% left.
Now I have an Evo. And the first stay (with constant use) it died after about 4.5 hours. But I am going through the process of draining and then FULL recharge of 6-8 hours and I'm sure it will be fine.
People think they plug the phone in an hour or two and it says 100% and they have charged it. My opinion is that it takes the battery a while to know what 100% and 0% are on any given battery. After it cycles through a few times it will actually have a true accounting of the battery life, power consumption.
That is all my opinion and experience. I am hoping the EVO has a similar battery life to the HD2. That would be perfect for me.
EDIT: And as for lag....the guy is obviously on crack and just saying stuff to say stuff. I doubt he even has an EVO. He's reading about Sense Lag on the HD2 which there was some) and passing that information on. Anyone who actually HAS an evo have any lag? I think not.
And if he thinks an iPhone 3GS in ANY way blows the EVO out of the water...he is obviously lying. I mean based on feature set alone. There is no way the iphone can browse as fast (4G...hello), operate as fast (gee isn't that processor almost twice as fast), take better pictures? No. Have a front facing cam? No. Oh yeah...that screen size on the iPhone sure is better than the EVO. WTF?
Some people's kids.
Click to expand...
Click to collapse
I understand what you are saying. That was the only reason i am worried about buying an EVO. This author must have had all the applications syncing every 15 minutes. I have an apple itouch not sure how close the phone and this thing is but I like it. It is smooth and quick. (buts its not a phone). When it comes to android... Its about the experience that comes with it.
But this guy is positively being paid off haha

The battery is is very poor. I'm not exactly sure why that's the case since the EVO doesn't report the screen as a large draw. For example, I unplug my EVO, connect my Bluetooth headset and listen to a podcast for 10 minutes. That drains the battery to 92% from a full charge.
You will most likely have to carry a spare battery to get through the day, with light usage.
I'm hoping its an optimization issue and they can fix the battery issue with an update. Fingers crossed.
-------------------------------------
Sent via the XDA Tapatalk App
Click to expand...
Click to collapse
With light usage I had 36% remaining after 14 hours the other day. I think you just need to give the battery time to get adjusted. However, I have noticed that it seems to drain faster from 100-80% than it does from 80-50%.
-------------------------------------
Sent via the XDA Tapatalk App

TheBiles said:
With light usage I had 36% remaining after 14 hours the other day. I think you just need to give the battery time to get adjusted. However, I have noticed that it seems to drain faster from 100-80% than it does from 80-50%.
-------------------------------------
Sent via the XDA Tapatalk App
Click to expand...
Click to collapse
Well I actually just recently noticed the same about my iPhone 3G. The first 10-15% go really fast.

My evo seems to do pretty good with the battery I can go the whole day without needing a charge but I do charge it when I get home. When I'm using it for games all day it drains pretty quick but at those time I plug it in... I don't know what they expect when your rocking a 1ghz processor, a 4.3 inch screen, and about every type of network connection you can fit in a phone... as far as lag goes on this phone I notice very little mainly when I'm installing like 3 or 4 apps at once... compared to my hero this thing is a rocket! And once Android 2.2 is put on here this thing will be smoking.
Sent from my PC36100 using Tapatalk

My Evo lasts for 8-9 hours. That's 70% idle with screen off. Cell Standby at 40+% is killing my battery.
My motorola droid in the same time still has over 50% charge. There's no question that the Evo is a battery drainer for whatever reason.

hate to say it, but once a fan boy always a fan boy. I used to have a win-mo device (touch pro) and i like it, then i moved up (should i say downgraded) to the instinct- worst decision ever. than i used the android platform on my hero. I'd have to say its leaps and bounds easier than win-mo.. My brother has an iPhone which i always play with when he comes over, and i think its a really easy interface to play with.. thats all. The speeds at which apps were open weren't any better than my hero. I also opened up maps on his phone and mine, and my location was dead on with the hero, the iPhone was 100meters. LOL.
But everyone needs to try other stuff out and make there own decisions, dont let someone who is obviously a fan boy tell you whats good and bad.

thechiman said:
The battery is is very poor. I'm not exactly sure why that's the case since the EVO doesn't report the screen as a large draw. For example, I unplug my EVO, connect my Bluetooth headset and listen to a podcast for 10 minutes. That drains the battery to 92% from a full charge.
You will most likely have to carry a spare battery to get through the day, with light usage.
I'm hoping its an optimization issue and they can fix the battery issue with an update. Fingers crossed.
-------------------------------------
Sent via the XDA Tapatalk App
Click to expand...
Click to collapse
thats ur prob ur using bluetooth it will use more battery and then ur playing the podcast at the same time any phone u do that on u will use more battery

the battery technology is a few years old. the cpu is 1ghz.. the phone is sniffing 3g/4g/wifi/bt plus the shiny screen and backlight all use power. the battery technology being used in this state of the art phone is not advancing as fast as the phones are...
the reason the top ~10% of the charge goes so quickly is due to the you taking the phone off charge.. the cells in Li-ION batteries are not created equal. some cells will get a stronger/longer charge than other cells. once you take the battery off charge, the cells that are stronger in charge than the others will feed that extra charge to those other cells, so your battery charge will fall down to around 90 or so pretty quickly out the gate.. from there the cells are all stable and equally charged and stay at a constant discharge rate for about ~87% to about ~55%.
once the charge falls below 55% the cells really start to lose their charge and the battery curve drops drastically.
when you "top off" the phone for , say, 30 minutes or so and you take it off charge and you see 100%. do understand that one or two cells have a fuller (my word) charge than others.. once the cells equalize, then you will see the tru charge (which will be much much less than 100%)...

I'll post my findings here although probably no one will believe me. I'm not a fanboi since i've phones on three carriers.
My EVO will lose 2% per hour sitting idle which is fantastic. My HD2 loses approx. the same amount, maybe a little less.
I've found the EVO to be no more power hungry than any "superphone" i've used including the iphone 3gs.

signal strength also plays a part
one thought based on my experience with a palm pre and htc hero: signal strength.
My office has very low signal strength (1 bar or less). The battery seems to drain quite fast here. If I'm somewhere else with good signal, my battery lasts much longer. Same battery drain if you're going in and out of evdo / 1Rxx.
Sean

My battery life is like all the other phones i had lately (see my sig).
No more, no less.

I have to say my battery is getting better with going through a couple full charges, as for lag nope none not here

“Phone idle,” and “Android system” that eat up over 75% of the life.
Click to expand...
Click to collapse
LMAO, the fact that he wrote that puts severe doubt in his skills to review an android phone.

I can't believe this thread is going on seeing as that's an Apple Fanboy site. Will say anything to make his Iphone sound like the best thing ever. He lost all credibility when he said the Nexus One and Incredible were better phones.

marctronixx said:
the battery technology is a few years old. the cpu is 1ghz.. the phone is sniffing 3g/4g/wifi/bt plus the shiny screen and backlight all use power. the battery technology being used in this state of the art phone is not advancing as fast as the phones are...
the reason the top ~10% of the charge goes so quickly is due to the you taking the phone off charge.. the cells in Li-ION batteries are not created equal. some cells will get a stronger/longer charge than other cells. once you take the battery off charge, the cells that are stronger in charge than the others will feed that extra charge to those other cells, so your battery charge will fall down to around 90 or so pretty quickly out the gate.. from there the cells are all stable and equally charged and stay at a constant discharge rate for about ~87% to about ~55%.
once the charge falls below 55% the cells really start to lose their charge and the battery curve drops drastically.
when you "top off" the phone for , say, 30 minutes or so and you take it off charge and you see 100%. do understand that one or two cells have a fuller (my word) charge than others.. once the cells equalize, then you will see the tru charge (which will be much much less than 100%)...
Click to expand...
Click to collapse
the battery in the EVO (and pretty much every phone evar) is a single cell battery.
you have no idea what your talking about do you?

Screen killing battery

hello my phone doesnt last 1 day of charge and it says 40% is due to display/screen can anyone help me?

alvespt said:
hello my phone doesnt last 1 day of charge and it says 40% is due to display/screen can anyone help me?
Click to expand...
Click to collapse
You can lower your brightness if it is not already at the lowest setting.

Unfortunately, the galaxy nexus has poor battery life. You could also try turning off data when you don't need it.
Sent from my Galaxy Nexus using Tapatalk

the screen is at lowest and it doesnt make sense turning of data if the problem is from screen right?

I'm having the exact same issue. Screen is totally eating up my battery life. It took 30 minutes for the battery to go down by like 10%. And the screen is 40% of the battery life issue.

Arrio said:
Unfortunately, the galaxy nexus has poor battery life.
Click to expand...
Click to collapse
Maybe I just don't use the screen as much as you, but I don't find this to be true for me. I find it has great battery life. I don't sit for hours with the screen on, but I do regularly text and check emails throughout the day, do a bit of web browsing, take some calls, and play some Angry Birds or other games in the evening. The screen is always at the top of the list for battery usage, but even on an extreme day I still have more than 30% battery left by the time I go to bed. I throw it on the charger and I'm ready to go again in the morning.
I disagree that the Galaxy Nexus has poor battery life, in general. I would argue that: all high-end phones have "poor" battery life because of all the things they do (especially 720p screens), your personal use of it consumes a lot of power and you could benefit from an extended battery, or you have a faulty device.

hi there, i do that exact same things with no games, so less usage but i get less than a day... i love the phone but the batery is just no working...

I don't understand why people don't get that when you have a screen that is 4.65'' it will destroy the battery life. My screen use is always at 60% or more but yet I still get good battery life. The screen is going to use the majority of your battery when compared to other things, that's just how it is.

sorry but thats not the point, when you pay 700 for a top phone, that is suposed to be the google experience to carry arround wiith you and you can only get 10 hours of battery time something went wrong in the process...

Most phones are $600 to $700, and name one 4g phone that will last more than 10 hours with moderate use and no extended battery, just not going to happen. You need to reset your expectations.

GN battery is giving lots of trouble, too. I picked up the phone from charge and it was 100% charged. ! hour of usage with 3g on. Usage includes 1 hours or music and reading of pdf books simultaniously and battery is dropped to 61%.

alvespt said:
sorry but thats not the point, when you pay 700 for a top phone, that is suposed to be the google experience to carry arround wiith you and you can only get 10 hours of battery time something went wrong in the process...
Click to expand...
Click to collapse
I think you should take a look at every other android phone that has come out with the same specs in the last year. Everything from the EVO 3d to the thunderbolt have their default battery's not last more than around 6-8 hours with constant use because of the screen & processors.
THis is why Verizon offered the extended batteries at a discounted rate right off the bat, because default batteries have never ever lasted that long in topof the line smartphones. FFS the new iphone 4s I've heard from a friend that their phones don't even last 24 hours.
I have a galaxy nexus, and mine has lasted... let me see.. one sec...1 day 3 hours and 25sec's with 35% left. (of course I have the extended battery) but here's the kicker: the extended battery has basically the same back as the regular phone does. so if they so desired, verizon could technically put out another extended battery just like all the rest of the phones, but they might not do that. I'm content with the battery life as it is almost identical as the droid X from which I came. The only difference is since I have a lot of un-updated apps for ice cream sandwich one of them is using "mediaserver" A LOT. I'm talking about that being the top of my battery draining with the screen being second. They both have taken ~20% with android OS itself taking 13, PlayerPro taking 13, and other random things like calls and txt msging taking ~10% each.
So I would suggest not trying to watch a lot of stuff on your phone while on battery, or don't expect your battery to survive long while watching stuff on that great screen

hymn thanks for the feedback so the only solution I see would be to go for a bigger battery. I'm from Portugal were could I buy one and whays the power?
Sent from my Galaxy Nexus using Tapatalk

If your screen usage is less than 50%, it be more worried about what else is killing your battery........

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

How are people getting such great battery life on the Epic Touch!?

I am watching this thread (http://forum.xda-developers.com/showthread.php?p=23272848) in amazement, as people report 24+ hours of battery life, with screen-on time of four, five, or even SEVEN hours!
I can't understand how folks get such great life.
Mine averages about two or three hours of screen time and about 14-18 hours, I'd say. I'm using Blazer 4.0, FB27 modem, and Rogue 1.4 kernel.
I know everybody's usage is different, and also we're all going to get different results due to other factors (signal strength, apps, etc), but I can't understand why the massive difference in battery life!
And I do have an 1800 maH battery.
Note: I do have a handful of apps, but not a whole lot, and I don't think any are destroying the battery. According to BetterBatteryStats, it doesn't look like the phone is having any trouble sleeping. That is, the screen-on time is just slightly lower than the awake time, meaning that the phone is typically sleeping when the screen is off.

imekul said:
I am watching this thread (http://forum.xda-developers.com/showthread.php?p=23272848) in amazement, as people report 24+ hours of battery life, with screen-on time of four, five, or even SEVEN hours!
I can't understand how folks get such great life.
Mine averages about two or three hours of screen time and about 14-18 hours, I'd say. I'm using Blazer 4.0, FB27 modem, and Rogue 1.4 kernel.
I know everybody's usage is different, and also we're all going to get different results due to other factors (signal strength, apps, etc), but I can't understand why the massive difference in battery life!
And I do have an 1800 maH battery.
Note: I do have a handful of apps, but not a whole lot, and I don't think any are destroying the battery. According to BetterBatteryStats, it doesn't look like the phone is having any trouble sleeping. That is, the screen-on time is just slightly lower than the awake time, meaning that the phone is typically sleeping when the screen is off.
Click to expand...
Click to collapse
With your usage, you feel 14-18 hours of battery is bad??? Id say a day of 16 hours consistently is pretty darn good. Now, I know that I have gotten over a day on battery by using it all day and then forgetting to charge it over night. Sleeping while the phone isnt awake can give some pretty outrageous looking battery life. Again, Id say if you are getting 14-18 hours on one charge, you are doing pretty darn good.

Im lucky if I can get 7-8 with all the "videos" I watch during the day

kbizzle said:
With your usage, you feel 14-18 hours of battery is bad??? Id say a day of 16 hours consistently is pretty darn good. Now, I know that I have gotten over a day on battery by using it all day and then forgetting to charge it over night. Sleeping while the phone isnt awake can give some pretty outrageous looking battery life. Again, Id say if you are getting 14-18 hours on one charge, you are doing pretty darn good.
Click to expand...
Click to collapse
Well, I understand that when the phone is sleeping, it generally uses very little power -- especially on wifi.
It's mainly the screen-on time that amazes me. How can somebody get seven hours of screen-on time?? Just seems unreal!

iSaint said:
Im lucky if I can get 7-8 with all the "videos" I watch during the day
Click to expand...
Click to collapse
Not to mention the sore wrist.

cds0699 said:
Not to mention the sore wrist.
Click to expand...
Click to collapse
I know and the nurse keeps giving me cough drops for it in school

Well I am assuming that their 7 hours of screen on time was doing something minor. Then again, these are electronics, and they are all different. He just may have found his perfect set up. But again, if you can get through your day, doing everything you needed to with your phone and lasted 14-18 hours, I would be happy.

imekul said:
Well, I understand that when the phone is sleeping, it generally uses very little power -- especially on wifi.
It's mainly the screen-on time that amazes me. How can somebody get seven hours of screen-on time?? Just seems unreal!
Click to expand...
Click to collapse
I get good time myself just by lowering the brightness.
Sent from my SPH-D710 using XDA

disabling fb/twitter sync has helped my bat life improve.
always turning screen off when done rather than letting 1min timer take care of that whenever possible.
wifi is better on battery than 4g/3g. also disable wifi sleep.
other than that.. all comes down to extra 3rd party apps you have and personal usage.

I've never calculated mine all out, but I do get some pretty decent battery life.

Its all about how you use the phone. everyone seems to have there own definition of what "heavy" and "light" usage is but the fact is people getting 14+ hours aren't using there phone all that often. if you want to know how much actual usage time you can get out of the phone check the time the phone has been awake or the time the screen has been on.
for example my g2x goes for about 2 and a half hours of screen on time. my vibrant, 2 hours. havent had the e4gt long enough to see. these numbers of course changes depending on what you're actually doing (data intensive tasks will obviously cause faster drain) but it will give you an idea of how much you can actually use the phone before it dies. if all youre doing is texting here and there and checking email plus maybe 15-20 minutes of games or videos it isnt hard to get through a 10-12 hour day on a single charge. but if youre like me where i spend extended periods of time browsing the net while messaging and texting then the batter is going to die fast regardless of what battery saving tricks people suggest.

I recently removed OfficeSuite Pro 5 and noticed about 15-20% better battery life.
I also removed it from my other android devices and my tablets. Still testing them to see if theres a difference or not but so far it seems a bit better battery life.

iSaint said:
Im lucky if I can get 7-8 with all the "videos" I watch during the day
Click to expand...
Click to collapse
Pron?
It burns when I Tapatalk....

My bat life isn't great now that I'm on cm9 ...but when I ran any of cauks roms with the batter saver script I would get a day of batt with pretty consistent use.. the one thing I miss....

Beejis said:
Pron?
It burns when I Tapatalk....
Click to expand...
Click to collapse
No porn
Lol jk bro
Sent from my SPH-D710 using Tapatalk

My bat life isn't great now that I'm on cm9 ...but when I ran any of calkulins roms with the batter saver script I would get a day of batt with pretty consistent use.. the one thing I miss....

You can also use juice defender ultimate on aggresive
Sent from self nominated team "Z" member's phone.

los82 said:
My bat life isn't great now that I'm on cm9 ...but when I ran any of calkulins roms with the batter saver script I would get a day of batt with pretty consistent use.. the one thing I miss....
Click to expand...
Click to collapse
His new rom with FCO2 will have battery saver script on it
Sent from self nominated team "Z" member's phone.

I don't know. Just how much can you believe people who are posting on forums that they are not exaggerating? Take for instance the post below where this guy was claiming he got 11 hours of screen on time and STILL had over 50% battery left on stock battery. By far the biggest claim in battery life I have ever seen. And he was insistent on it:
http://forum.xda-developers.com/showpost.php?p=22293195&postcount=30
All I'm saying is take what people are saying about amazing battery life with a grain of salt.
I average about 3 hours screen on time, and occasionally get over 4 hours with ~24 hours total time. But if my signal isn't the greatest, like when I'm at work, I get probably 1.5 hours screen on time and 17 hours total time.

I'm currently at 14h 41m with display on for 2h 36m and still have 47% battery left (I'm on stock rooted EL29).
Sent from my SPH-D710 using XDA

Aftermarket battery

Does anyone know of a better battery that will work with the zl.
As we all know this phone really suffers from poor battery life and overheating. I've managed to solve the overheating problem by flashing miui v5 and have it undervolted @ 987mv @ 1512mhz with doomkernel and kernel tuner, the phone is very cool now compared to before. However battery life is still dissappointing lasting only 10 hours a day dropping 10% every hour with light/moderate usage. Onscreen time it will die within 3 hours
So I wanna open it up and put a better battery so I can use a different rom cos miui is very restricted imo. xposed framework doesnt really work well with it.

th3m0dd3r said:
Does anyone know of a better battery that will work with the zl.
As we all know this phone really suffers from poor battery life and overheating. I've managed to solve the overheating problem by flashing miui v5 and have it undervolted @ 987mv @ 1512mhz with doomkernel and kernel tuner, the phone is very cool now compared to before. However battery life is still dissappointing lasting only 10 hours a day dropping 10% every hour with light/moderate usage. Onscreen time it will die within 3 hours
So I wanna open it up and put a better battery so I can use a different rom cos miui is very restricted imo. xposed framework doesnt really work well with it.
Click to expand...
Click to collapse
Stock firmware gives me 4,5 hour screentime MINIMUM! So its NOT as we all know. It's your phone and your apps. Mine lasts a good day with more then moderate/light use. 13 hours with 75% left at the moment and 1 hour 10 min. screentime. Wifi always on. When out of house, 4G/LTE always on. NFC constantly on. So its you. Not your phone.

22,5 hour on single charge. 4,5 hour screen time. 8% left. I can't see your problem.
Sent from my C6503 using XDA Free mobile app

Yes you are correct, Im using paranoid rom and battery life has improved a lot. I also found that heavy undervolting uses more battery life. I'm new to android so didn't know this. What roms are you guys using exactly?

battery life
So? is there any after market battery?
heres my battery life, can someone help me?

I get around 15 hours with the stock rom. I switched to existenz but i havent tested it yet.
And i really want to change the bat.
If there was a way to put a LiPo 3000mah in this thing...

aliexpress.com
You can buy new battery for xperial ZL from aliexpress.com. Not many vendors though, but its pretty cheap.
I ordered mine and it reached from China to India safely in around 1 month. Seems good and genuine, but have not tried it yet. As others have said, it may not be a problem with the battery at all and changing battery wont do any good. Check if its really a battery problem or not.

givemered said:
You can buy new battery for xperial ZL from aliexpress.com. Not many vendors though, but its pretty cheap.
I ordered mine and it reached from China to India safely in around 1 month. Seems good and genuine, but have not tried it yet. As others have said, it may not be a problem with the battery at all and changing battery wont do any good. Check if its really a battery problem or not.
Click to expand...
Click to collapse
i also ordered one from ebay it says made in japan now its working smooth and giving me extra 3-4 hours of battery life

after three years of extensive usage, my battery has now reached the end if its life. It now dies at around 30%- 40%. I tried battery calibration but it works only once. after a full 100-0% run, the next run dies at the same 30- 40% level. I have been monitoring voltage via ampere app. when it reaches 30- 40 % range, the voltage drops significantly from 3.5 to 3.2 and below and shut off abruptly. also, now during heavy usage, battery temp goes up to 50 C.
Does this mean the battery is completely worn out? or something else may also be bad?
anybody else with 2-3 years of use notice the same?
and if the battery is at fault here, can someone suggest me a link where can i buy one?

control freak said:
after three years of extensive usage, my battery has now reached the end if its life. It now dies at around 30%- 40%. I tried battery calibration but it works only once. after a full 100-0% run, the next run dies at the same 30- 40% level. I have been monitoring voltage via ampere app. when it reaches 30- 40 % range, the voltage drops significantly from 3.5 to 3.2 and below and shut off abruptly. also, now during heavy usage, battery temp goes up to 50 C.
Does this mean the battery is completely worn out? or something else may also be bad?
anybody else with 2-3 years of use notice the same?
and if the battery is at fault here, can someone suggest me a link where can i buy one?
Click to expand...
Click to collapse
Same here, phone shuts down around 40% and whats worse is that the battery has deformed and pushed motherboard up causing a lot of problems. My ZL USB port short circuited blowing smoke and now won't boot up at all. Tested the battery and got voltage around 2.8V, which means safety triggers won't let me charge it