Database Users

Battery drains faster than it should

Hello there,
I would really like some advice - my battery is draining like water. I'm quite convinced it is the regulation of the unit; I bought a 2400mAh battery replacement and it lasted ages on first go, but then my G1 started draining stupidly fast after I'd recharged it. This also happens on the stock battery too (buy even quicker!). I'm convinced it is the regulation because a) I've never had battery problems previously and b) the battery meter starts at about 26% when I plug it it in (after the phone shuts off from it being dead and I then plug in the charger).
I actually have a bricked G1 that still charges batteries, so I thought I'd do an overnight charge on the battery that way, to 'remind' the other G1 what a 100% battery is like, but that didn't seem to work either.
Can someone help? Is this a known problem? I would really appreciate any advice.
Mark

Things that cause ridiculous battery drain;
Backlight, keep it at no more than 30%
Wifi - turn off search for open networks,
Gps - wow does this drain

gridlock32404 said:
Things that cause ridiculous battery drain;
Backlight, keep it at no more than 30%
Wifi - turn off search for open networks,
Gps - wow does this drain
Click to expand...
Click to collapse
GPS doesn't really drain battery unless it's actively being used...at least not on my phone.
You can also try disabling 3G if you're not in a 3G area. It will keep trying to find a 3G signal, which really drains battery.
For the record, I have a stock battery that I get ~13-16 hours on from a single charge... my backlight is at 40%, GPS is always on, and I use wifi whenever I want to surf the web and am near an open network.
OP...if your battery is lasting you only a couple of hours, then I'd try to reflash your ROM. Might help...

Wow 13 to 16, I am lucky if I get 6 with 30% backlight, and wi-fi and gps off, I have always gotten that on ever rom even stock with no widgets, you are one of the very few with good battery life cause I have seen many complaints about short battery ranges

gridlock32404 said:
Wow 13 to 16, I am lucky if I get 6 with 30% backlight, and wi-fi and gps off, I have always gotten that on ever rom even stock with no widgets, you are one of the very few with good battery life cause I have seen many complaints about short battery ranges
Click to expand...
Click to collapse
Yeah, that's on a normal, moderate usage day. If I use it heavily, with a lot of wifi and web browsing, then I'll get around 10.
Maybe your battery needs to be replaced... could just be old and not holding a charge properly.

It's 2 months old, has done it from day one, I also have another battery that does it too that I kept from a previously brick g1, so one 3 phones, all the same battery life but then I use it quite heavily, always browsing on the web since my computer burned out

http://forum.xda-developers.com/showthread.php?t=555048
try that? 3rd gen battery could help..

Thanks for the suggestions, but it's not a wifi/3g/brightness etc problem - I've had a G1 for six months, I know exactly how much power should be consumed. It's also not the battery; I have two stock batteries and a brand new 2400mAh battery, which for the first few charges lasted about 2 - 2.5 days and was brilliant (as it should be), but now doesn't last all that long.
I may have made the situation slightly better however - I did a Nandroid backup, wiped to factory (well, Cyanogen 4.0.4 anyway) and booted into that. I then restored the backup and when I plugged back in to the charger, the meter was at 85%, and seemed to take a normal amount of time to charge (and not jump to 100%). It remains to be seen if the problem is solved, I've yet to have the battery drain (this is a good sign though) an plug in the charger to see if it will jump from 0 to 25 or not.
I'll re-post when I know.

run the battery down until the phone shuts off without plugging it in.
charge the battery while the phone is off over night
do this 3-5 times and see if you get any improvement.
also remember some of the cheap 2400 batts from ebay and such claim 2400 but that is from 3.5V to 3.0V. The G1 considers 3.2V to be dead so you only get from 3.5V to 3.2V which sucks.

I'm with gridlock on this one. My batteries suck. It always needs a mid day charge. And to the poster that said to reflash a rom, that is bad advice. There is known issues with getting poor performance out of these batteries. I have 2 and both do the same. Got the second one from complaining to t-mo about how bad it sucks.

Reflashing seems to have worked...the 2400mAh battery seems a lot better now, it lasted nearly two days (it runs at 3.7v, according to my battery diagnostic), I've only just recharged it last night. When I plug it in, it charges normally and linearly now, instead of jumping straight to 25%.
So my advice, if anyone is having similar problems to me, would be to try a reflash.
Thanks for your help everyone.

I NEED HELP!!!! My battery gets empty too fast

I've been reading and readind all the post i can get and tried do deactivate al the functions i could remember but without any good results. My phone isn't rooted and it is as it came ( beside some apps I've installed). I don't know what to do more. PLEASE give me some more advices.
Thanks
Sent from my Nexus One using the XDA mobile app

ok do a wipe and discharge the battery completely and recharge fully without the use

what. do you mean with wipe? I'm a beginner is the droid world. ..
Sent from my Nexus One using the XDA mobile application powered by Tapatalk

restored everything from factory

ok. thanks for the imput

can you give me the idea of how much time should i expect to complete charge of a nexus one battery, while using it. mine takes 2 or at most 3 h. i think ot is fast. should i be worried?

I prefer to charge it while it's off. Using it while it's charging emits more heat than usual, thus being bad for the battery :x.

You don't need to turn it off to charge it, it's true it may become warmer but it's far from being dangerous to the phone and won't harm the battery. How long is your battery lasting? You said you're new to Android so I'm not sure if you've had a smart phone before but it's typical for a smart phone to last between 8-24 hours depending on how much you use it. It will last less than that if you're streaming music and youtube all day.

yesterday my phone lasted 5 h at most. and yes i'm a newbe.

during last night after emptied
my battery i did a full charge while the phone was off. lets see today

The screen is a battery eater, avoid watching movies or playing games or it will last 5h. My N1 battery can last 4 days if I don't turn on the screen but if I turn it ON it loses 1% every 2min
For better battery results:
-Use a task manager/killer app from the Market to kill running apps
-Use Undervolted Kernel (Root needed)
-Use 2G only when you don't need 3G
-Don't use CM Roms because they eat more battery than other Roms
-So far the best Rom for battery is the Desire Rom(but still no BT)

the thing that bothers the most is that 90% of my battery use goes to tbe screen. so it doesn't matter how well i tweek my phone... do you get my point.

i don't watch movies in it. i use a taskmanager as you said, and since yesterday stop using 3G (and i think I'm seeing some diference). it's amazing when you say 4 days (with the screen tirn off) - but to me is a little hard to not using it: I bought this phone so i don't need to allways bring my laptop with me. about what you said about the roms i don't feel able to mess with that.

1. Choice of wallpaper matters. Experiment to see which ones use less battery power for you. (e.g. Magic Smoke live wallpaper is good for saving battery power.)
2. Brightness of screen setting important. NO auto. Select lowest possible manual setting & you still have plenty of light. You can raise level for those instantces when you need extra light.
3. GPS off, except when needed.
4. Seidio 3200 mah battery with provided cover is excellent. No battery longevity problems ever since using this battery. (also using other tips mentioned here)
5. Bluetooth always on, no problem.
6. Wi-Fi on when you need it.
7. 2G/3G switching unnecessary.
8. After total discharge or new battery, let charge at least 12-24 hrs. (this particularly applies to the first few cycles of battery use) After several total discharge/recharge cycles, recharge whenever. Nothing is gained by letting battery totally discharge after that. If you have correctly charged your battery to 100%, remove it, reinsert it, & find % power loss, you may have battery with leak. Replace battery.

I have tried many methods of saving battery, and by far
JUICE DEFENDER
is the best method I have tried yet.
It basically makes it so your APN(Data) only turns on once ever 15 minutes Or when the screen is on.
You can adjust settigns with pay version, but the free version is VERY good still..
Combined with the 850mv undervolted kernels I am draining maybe 3% per hour on average with some light use(regular amount for me, light for most)
I would give it a try. No risk with it.

Combined with the 850mv undervolted kernels I am draining maybe 3% per hour on average with some light use(regular amount for me, light for most)
I would give it a try. No risk with it.
Click to expand...
Click to collapse
can you elaborate on that what implicated? and what do i have to? doesn't the phone need to be rooted?

I'm starting to see the light at the end of the tunel. usually by this hour I'm beginning to use my second battery charge of the day. right now I'm at 50% of the charge i made last night (after totally emptied the battery made a full charge with the phone turned of). deactivated GPS, sinc, using only 2G and a lot of self motivation to not touch the screen. it's better, but still made my order at expansys for a backup battery and a dock to use at home with the possibility to charge the spare battery.

today my battery had juice for 13h. from 9am to 10pm. it's a improvement. .. really is.

sousafrui said:
today my battery had juice for 13h. from 9am to 10pm. it's a improvement. .. really is.
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Dude, my advice - don't worry too much about wallpaper/wifi/BT and all that.
Here's my short battery story.. I bought it 3 weeks ago and no matter what I did, it'd last me 4-6 hours and die. No matter what I did with brightness/WiFi, it made little impact on the battery life.
Now, 3 weeks later, I have:
100% stock AT&T N1
Only 3G, never 2G
100% brightness
more phone calls per day
Wifi/BT/GPS always ON
Always use live wallpaper (gray neural network)
2 email accounts on PUSH (exchange + gmail)
And my battery lasts me 8am to 10pm easy. I just charge it overnight.
So, cycle it (full, complete drain) 1-3 times, then just use it normally. It'll be much better after 2 weeks or so. Also, HTC tech recommended me to use "trickle" charge (charge it with USB, not AC).

So, cycle it (full, complete drain) 1-3 times, then just use it normally. It'll be much better after 2 weeks or so. Also, HTC tech recommended me to use "trickle" charge (charge it with USB, not AC).
Click to expand...
Click to collapse
hope you're right. mine is now 2 weeks old. i though that was better to charge using AC. i had another cellular some years ago and the battery got messed up because the i charged very often with the computer through usb. are you sure?
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Click to collapse

Battery Charging Tips (Golden 100%)

Just want to share my experience of 'best' charging method that can maximize the battery life of my Nexus one.
Firstly, let me introduce my equip:
- Machine: Nexus one
- Rom: FRF91 Stock, Deodexed, rooted, busybox... (Geo411m)
- Kernel: intersectRaven's 2.6.35_AVS-925mV_CFS_20100802_1056.zip
- Control: SetCPU, Interactive: 245-960Mhz when on, and 245-245 when screen off
The key method of obtaining max. battery life is the 'GOLDEN' time from 100% drop down to 99%. Once the battery shows dropping from 100 to 99%, the dropping speed is quite stably fast onwards
So, how to retain 100% longer before dropping to 99%? Below are the steps that really work for me:
1) Charge the phone to green light, some where between 90% and 100% (say: 95%)
2) Disconnect USB charging cable
3) Turn off the phone
4) Connect USB charging cable and charge the phone, it should show orange light
5) Set a timer, remember to *ONLY charge the phone for around 20-25mins*
6) The concept is NOT to charge the phone until you get green light. In order words, you need to charge the phone from 95% for 20-25mins where the light is kept ORANGE with the phone turned off!!!
7) After 20-25mins, disconnect USB cable and power on your nexus phone
8) You are done and the battery should last longer before dropping to 99%
9) Time in step (5) depends, you need to trial-&-error
For my experience, I normally charge the phone before I sleep and disconnect the charger. In the morning when I get up, it usually shows around 95% of battery. Then, I power off the phone and charge it. And then I take breakfast, bla bla bla ~ and after around 20mins, disconnect the charger and go to work. The battery can retain 100% for around 30mins of continuous web browsing, facebooking... and when I reach my office, sometimes, the battery still shows 100% !!!
So, above is my experience of how to maximize the 100% retaining time.
Please feel free to try and share with us whether it really works for you

Great advice.
Personally, I can't really be bothered with going out of my way to be overly concerned about battery life. I don't play games on my phone -- that will change when Angry Birds is released for Android -- nor do I watch movies, and I don't really do too much web browsing. Sometimes I listen to music, but not often.
I can go 12-14 hours of normal use (mostly Twitter and text messaging) and that will put me around 45-50%. I'm never somewhere that I can't charge the phone if I need to; USB at work, regular charge at home, and a charger in the car.
All of these tips and tricks for extending battery life are neat, but why bother?

^ Well looking at your usage, and the plenty charging points, of course you dont care. However, some ppl browse a lot, play games, so every last inch of battery life means something.

I just keep spare batteries in my pockets =D

I will try your golden tips.. then I will write my thoughts.
I thank you for sharing.

Screwing up the battery meter does not get you more battery life, period, and I suspect your shenanigans here is doing that. The battery has a set capacity, it's not going to charge more than that.
The Nexus One and a lot of other modern phones with modern batteries DO NOT trickle charge, they charge to 100% and STOP charging. When the phone drops to a certain limit, it charges more. Repeat as long as it's on the charger. This is why you might see it "drop a few percent" when you pull the charger.

Yea this sounds like a huge placebo effect.

Well I just did this, been off charger for over an hour.. still 100% after over an hour and two reboots.
At 1378mAh right now, didn't get a reading straight after first reboot unfortunately.
I'm also trialing autorun killer. Disabled a free services I don't use.. seemingly increased startup time.

heya,
Don't you mean decreased startup time?
Cheers,
Victor

Yeah, that's what I mean.
victorhooi said:
heya,
Don't you mean decreased startup time?
Cheers,
Victor
Click to expand...
Click to collapse

Goonish said:
Well I just did this, been off charger for over an hour.. still 100% after over an hour and two reboots.
At 1378mAh right now, didn't get a reading straight after first reboot unfortunately.
I'm also trialing autorun killer. Disabled a free services I don't use.. seemingly increased startup time.
Click to expand...
Click to collapse
How do you figure out your mAh level? Spare parts only shows me mV.
Thanks
Sent from my Nexus One using XDA App

This is placebo. In the OP you even say after it finally drops to 99% it drops fast after that. It's because the phone wasn't at 100% all that time. It was giving you a false reading from messing with the charging pattern.
The best way I've found to charge the phone is to delete the battery stats, turn the phone off, and charge it until it's green. I get a great day of battery life with the phone that way.

Ryjabo said:
Great advice.
Personally, I can't really be bothered with going out of my way to be overly concerned about battery life. I don't play games on my phone -- that will change when Angry Birds is released for Android -- nor do I watch movies, and I don't really do too much web browsing. Sometimes I listen to music, but not often. I can go 12-14 hours of normal use (mostly Twitter and text messaging) and that will put me around 45-50%. I'm never somewhere that I can't charge the phone if I need to; USB at work, regular charge at home, and a charger in the car. All of these tips and tricks for extending battery life are neat, but why bother?
Click to expand...
Click to collapse
Totally agree...I just charge when & where necessary and never worry about it! Don't have the time and it seems to last long enough for me to work & play

I had already discovered this and was looking for a fool proof way but I guess you beat me to it. Happens when you traveling alot. For me, I have gotten over 1500mAh more than once..some times 100% would last me half a day too. So it's worth it, my question is whether or not this is bad for your battery? or long term battery life.

ram130 said:
I had already discovered this and was looking for a fool proof way but I guess you beat me to it. Happens when you traveling alot. For me, I have gotten over 1500mAh more than once..some times 100% would last me half a day too. So it's worth it, my question is whether or not this is bad for your battery? or long term battery life.
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Click to collapse
I'm fairly sure that the Milliampere-hour (mAh) is the capacity of the battery (the amount of energy it will store). How can you get "over 1500mAh" on a 1400 mAh battery? None of you are making any sense what so ever. You can't get more energy out of a battery by charging it a specific way. If I gave you a bucket that held 10lbs of sand and you filled it with 8lbs of sand and waited a few minutes then started filling the rest slowly, it wont hold more sand. This is nothing more than a placebo effect. The only way to get more time from a battery is to reduce the amount of consumption. The only way to do that is to use your phone less or make your hardware use the battery less such as undervolting your CPU. I tried for the longest time to explain to people that underclocking your CPU does absolutely nothing. If you're still running at the same voltage you're still consuming the same amount of power.

Stop messing around with the battery and the battery stats.
Could someone please use the phone until it goes off in the evening? What percentage is shown on the batteryicon when it goes off? 20% or what?

xPatriicK said:
Stop messing around with the battery and the battery stats.
Could someone please use the phone until it goes off in the evening? What percentage is shown on the batteryicon when it goes off? 20% or what?
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Click to collapse
Actually it's not a good idea to fully discharge the phone often.
Source: http://www.batteryuniversity.com/

dumbestcrayon said:
Actually it's not a good idea to fully discharge the phone often.
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Click to collapse
I know but once isnt often.
Btw we have some great battery threads here.. somewhere.. general or accessories forums..

xPatriicK said:
I know but once isnt often.
Btw we have some great battery threads here.. somewhere.. general or accessories forums..
Click to expand...
Click to collapse
Yeah, http://forum.xda-developers.com/showthread.php?t=669497

I have been using ultimate juice defender and battery life has doubled with usual usage. Maybe this can be considered as an alternative to longer battery life
Sent from my Nexus One using Tapatalk

[Q] Does battery get better after a day? If not, what can I do?

So I got my G2 yesterday at about 4:30. I LOVE it, absolutely (a bit of a weak hinge, and I had a random reboot and trouble starting WiFi at first, but it's seriously fantastic). But I'm having problems with the battery. At the store the guy turned it on and handed it to me, and I used it on the way home to the point that, by about 1.5 or 2 hours after turning it on the first time, it was at about 15% battery. So I started charging it, and then read an article online that it should be discharged, so I unplugged it after it went up about 4 or 5% in battery life to 16% and used it a bit more to drain it all the way. Then I read a different one saying you should never discharge it because it's Lithium Ion, and so I turned it off until I could get to the charger and then charged it and left it charging until I woke up at 6. Then I unplugged it, used it for about 20 minutes in the morning, and turned it off. I turned it back on at 3 today, used it mildly (Angry Birds, an emulator, and the camera, but couldn't get data access except very intermittent EDGE, no Wifi or GPS enabled) until 4:10, and noticed that it was at 65% battery life. The screen is on automatic brightness, and I have animations and a live background, but those are my only concessions. It said 45% of battery use was Android and that was the highest thing, I think display was only second or third (unlike my parents' Vibrants where it's like 66% display).
So that's 1.5 hours for a third of the battery, with moderate usage (I would argue that no data or GPS or wifi or internet usage at all is very moderate). So, on average, I could expect to get 4.5 hours of battery life? At one point it went from 55m unplugged to 1:07 unplugged and the battery went down about 10%. That's worse than my parents' Vibrants, and they say they didn't do anything to train their battery--and I've seen reports, especially on here, of people getting 10 or more hours of use with more usage than I had. I know you train Android and not the battery, but still, I have seen SUCH conflicting information on this that I don't even think it'd be helpful to search anymore (and trust me, I have). So does anyone know about this, definitively? Does the battery life get better after I charge it and discharge it for several days? Should I let it go down to a full discharge or keep it above 35-40%? Does it harm it to keep it plugged in after it finishes charging, or does it have a thing to stop charging the battery and just run off AC once it reaches 100%? Is it too late to train my battery now? Are there any official or reliable large-capacity ones for the G2, like a 1750 mAh?
Thanks,
Rocky

Don't trust the battery meter. Fully charge your phone up, and it runs for forever. I've gone days where I unplugged it at 7:30 AM, and didn't plug it back in until 5:30 AM, and the battery was still above 20%. That was a day of fairly light usage, so that's not necessarily typical; with my normal usage (which is somewhat heavy), it's at about 30% by the time I plug it in at around 10:00 PM. The only time this isn't true is when I go for hours on an Angry Birds marathon :S

I have noticed on all my android phones that the first couple charges seem to drop much faster and each subsequent charge seems to get better. I run mine all day with push work email and vibrate all day and am upset when it is below 65% at 10PM and I unplug it at 7:30 am each day.

But did you guys do the same thing I did (15% then charge overnight) and then get around the same life, on your first day? Is it likely my short charge the first time did any damage? And are there any apps to provide a more accurate battery meter, preferably in place of the stock one?
Thanks,
Rocky

I did nothing special. I put it on charge when I got it but did not do a full charge before leaving work and going home. Did a full charge that night.
I plug it in each night when I go to bed and it has been as high at 70% and as low as 30% depending on how much phone and data time I spent that day.
I unplugged mine today at 7:36am and at 4:06PM it is at 79%.
I use battery indicator from the market. It does not poll and only listens for the OS battery change broadcast so it does not use up battery by running. Some poll and as such use battery to report.

The general thing about Lithium Batteries is that a full discharge is bad if the voltage level goes below a certain point to where the onboard circuits will disable that battery permanently. Most of the time the boards only do that if it's left discharged for a long time I believe, correct me if I'm wrong here.
Ideally, you're not supposed to turn on the phone when you got it. You were supposed to charge it till green and then you could use it, but I'm pretty sure not everyone can resist the temptation to turn on such an awesome phone . The battery life will blow the first week of use. I don't know why, but it just does; you'd have to break in that battery. Then the general rule I follow is to perform a full discharge once a month and then do a full recharge.
I also placed my phone on GSM AUTO PRL but for doing that I just exchanged some low 3G signal threshold for Edge; the extra battery life I got though is just that much more useful to me. Using WCDMA Preferred, the phone just wasted so much
To answer your questions, my experiences with the N1, Vibrant, and G2... battery life just blows in the beginning but gets better with use. The first charge you did shouldn't have damaged the battery but I think you may have wasted 2 of the possible 400-500 cycles that battery is capable of doing what you did. Finally, I use BatteryTime by Motalen for the status bar battery indicator which shows the % left.

Yeah, it just sucks because the guy at the store literally put my SIM card in and then turned it on and handed it to me. I probably wouldn't have turned it on until it had charged if he hadn't, or at least I like to think so.
So it's good to do the discharge thing once a month, and probably not bad for the battery to let it dip down as long as I don't prolong it too much? And I'm okay to just charge it and use it during the day, basically, from now on?

Does battstat poll the battery or just listen?

SeReaction said:
The battery life will blow the first week of use. I don't know why, but it just does; you'd have to break in that battery. Then the general rule I follow is to perform a full discharge once a month and then do a full recharge.
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Click to collapse
Nonsense. The battery runs down fast the first week because you got a new toy and you can't help playing with it all the time. After a while the novelty wears off and you use it a lot less. The battery doesnt just magically get better

grennis said:
Nonsense. The battery runs down fast the first week because you got a new toy and you can't help playing with it all the time. After a while the novelty wears off and you use it a lot less. The battery doesnt just magically get better
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Click to collapse
See but if that's true then I can only expect 4.5-5 hours of battery life which is not what the G2's supposed to get. Which means either I DID mess up my battery instead of just running through some cycles, or I have a bad one, but not horribly bad, just for some reason only like 60% as good as everyone else's. I do agree about the novelty thing (it's my first smartphone), but understand I was not really doing all that much when I drained my battery like I said. Not nearly as much as it should take.

aacrabtree said:
The only time this isn't true is when I go for hours on an Angry Birds marathon :S
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Click to collapse
Those damn birds aren't content to kill pigs; they have to go after our batteries too!

grennis said:
Nonsense. The battery runs down fast the first week because you got a new toy and you can't help playing with it all the time. After a while the novelty wears off and you use it a lot less. The battery doesnt just magically get better
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I'm hoping that's the case. I remember receiving my N1 and I got to relive my childhood days for 12 straight hours. Regardless it's pretty sad to say that I leave my G2 at home while at work and it's down from 100% to ~60% with Wifi on (and with it staying on in the advanced settings) and GSM Auto PRL; I work a 8 hours shift. I left my N1 at home to mess with my G2 at work and my N1 went from 100% to ~80%.
Those 100 extra milliamphrs shouldn't do that much of a difference. Not to mention the N1 is slower and on a 65nm process. Did I also mention that both my G2 and N1 run the same services and 3G is also disabled on my G2 since I don't have my new SIM activated yet? Also, Latitude is always on for my N1.
It's just my experience though. I'll give this a good thorough test when I get the time. That or pony up for an extended battery.
On the other hand, my wife's GalaS is doing just fine in terms of battery life. Matching my N1 with the same settings and services.

Extreme battery drain with new Nexus S

Bought a AT&T Nexus S yesterday. I was using it last night, getting it all set up, battery drain seemed to be about normal. I put it on the charger overnight and took it off at 7:40 this morning. By the time I got to work a bit before 8 it was at 94%, when I pulled it out at 9, it was at 73%. Restarted the phone, but by 9:30 it was in the high 50s. Checked battery use stats, didn't see anything out of the ordinary. Figured one of the apps I installed last night was running rampant so I did a factory reset at this point. Checked back about 20 minutes later, it had dropped into the high 40s, so I tried another factory reset just to be sure, and when it was done resetting.....the battery was showing at 7%!
At this point I just turned the phone off in case I needed it working to make a call or something. Turned it on at lunch to check for mail/missed messages, used it for maybe 2 minutes with the battery still showing 7% and turned it back off. Tried to turn it on around 3 o'clock and the phone was completely dead, it refused to turn on at all. The only strange thing I noticed was that the back of the phone, above the google logo but below the camera was warm to the touch. Any ideas what's going on with the phone?

The Nexus will only charge to 94-98%. If you haven't done a few charge cycles yet, give it some time.
Sent from my Nexus S 4G using XDA Premium App

The phone shouldn't be able to consume the battery that fast. Normally I'd recommend troubleshooting, but since you just got the thing you might as well just replace it.

Well I bought it from someone who bought it last week. I messaged him asking him to get me a copy of the receipt in case I need to exchange it and he's not sure he knows where it is so that might not be an option. I'm charging it now, I guess I'll just see how it works tomorrow.

The battery life was crap on my nexus s for about week and a half. But after that the battery life got better and better and now as long as I'm not syncing my exchange account my phone will go from 6:30am to 10-11pm and still have 30-40% battery left.
Side note, anyone know why the corporate exchange account draws so much battery?

bmwjnky said:
The battery life was crap on my nexus s for about week and a half. But after that the battery life got better and better and now as long as I'm not syncing my exchange account my phone will go from 6:30am to 10-11pm and still have 30-40% battery left.
Side note, anyone know why the corporate exchange account draws so much battery?
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Which technology is used to keep the corporate exchange acc in sync by Android/Google? If it ain't the same as gCal, gMail, gContacts etc then there's your reason.
I do think it's some kind of idling process, which takes obviously more power then a push-type of thing.

rentaric said:
Which technology is used to keep the corporate exchange acc in sync by Android/Google? If it ain't the same as gCal, gMail, gContacts etc then there's your reason.
I do think it's some kind of idling process, which takes obviously more power then a push-type of thing.
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Its the native program on the nexus s I'm using and I have it set to check only once an hour. But if I have it active or set to fetch once an hour it doesn't change how much more of the battery is used. But when I use it I'm lucky if I leave work with more than 50% of my battery left. Delete the account from my phone and I leave work with 80-85% battery left.

drain the battery a few times, then charge it to full. its normal seeing this kind of drain at first. it6 needs to be "calibrated".

mess with your display settings. lower the brightness and take it off auto. Turn the timeout to like 15/30 secs and see if that helps.
How hot is hot? Mine gets warm occasionally but spends most of its day in my pocket, but not hot.

Battery was much better today, still shorter than it should be, but I'd rate it as "android normal", especially since it hasn't been power cycled at all. It's down to about 25% after 10 hours off the charger, and I'm assuming it will get better, as others have said, after a few charge cycles.
For those asking how hot I was talking, it's the same spot that gets warm when you charge the phone, but it was noticeably warmer than it gets when charging, and like I said it stayed that way the whole day until it died.

Also depends on the charger, I bought a new charger, not the normal one you get with the phone, but a different one, still samsung though, and for the first time it charged to F !
Normally I would get up to 94% with normal charger
furthermore my battery life is excellent, can use it all day with 30% left. Using, cm 7.1.0 rc and matr1x 5.5 kernel

I experienced sometimes extreme battery drain, too. Fortunately I could figured out 2 reasons:
- Always: Kick Ass battery drain while logged in to Latitude, horrible!!! My full loaded Nexus S ran out of battery within 6 hours!!!! Thats not acceptable.
- Rarely, when Facebook App has problems and keeps the device awake in the background. By the Way, FB App for Android is crap!
To have I workaround, I do not use Latitude any more. A Log off out of Latitude could solve the extreme battery drain. FB problem, as I said, is very rare.

Just over a week since I received my ns4g.....been calibrating for 3 days now. Hoping to start to see some better results soon. Right now its averaging about 10% drop per hour, with moderate use. Nothing synced. No widgets. Display at 25%. Cm7 nightlies, matrix 5.5 bfs and proton uv at recommended setting.
I usually use my phone alot so I ordered an extra battery and charger just to make sure I always have enough juice. Would prefer to get an extended battery, but I couldn't find any case/holster combos that would work....
ahhhhh...........gone todash..............

Define "with moderate use". Because 10%/h is kinda crazy seeing you are pretty much runnig at max batt saving settings unless you doing at least 20mins of webbrowsing/actually working or playing with the phone per hour on average.

I discovered something interesting today. Charging the battery in the NS never gets past 94/95% (safety feature i've been told).
I received the 2 x battery and external charger dealio i bought on eBay ($9.99 ) and started charging one of the batteries. Fully charged i put it in the NS and the charge read 100%. So i put stock battery in the external charger and when it was fully charged i put it in NS and it read 100% as well. It's been 3 hrs on the hong kong eBay battery and i'm down to 89% (average loss of 3% / hour), definitely better than stock battery so far. Will evaluate and see which battery holds up more.
Also, the Go Launcher task manager thingy always shows a butt-load of apps just "running" in the background, stuff i haven't even launched at all, and they annoy me to no end.

rentaric said:
Define "with moderate use". Because 10%/h is kinda crazy seeing you are pretty much runnig at max batt saving settings unless you doing at least 20mins of webbrowsing/actually working or playing with the phone per hour on average.
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About 10-15 mins perusing forums, reading up on the news and reading tweets. Maybe a few texts. Have had to restrain myself from doing much more than that per hour. Usually use it more, at least I did on my last two phones ....that's why I had a 2800 mha batt for my evo and an extra batt for my optimus......
ahhhhh...........gone todash..............

LordLugard said:
I di
I received the 2 x battery and external charger dealio i bought on eBay ($9.99 ) and started charging one of the batteries. Fully charged i put it in the NS and the charge read 100%. So i put stock battery in the external charger and when it was fully charged i put it in NS and it read 100% as well. It's been 3 hrs on the hong kong eBay battery and i'm down to 89% (average loss of 3% / hour), definitely better than stock battery so far. Will evaluate and see which battery holds up more.
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Sounds like the same ones I ordered today......keep up with an update! Hopefully they do the job.
ahhhhh...........gone todash..............

bmwjnky said:
Its the native program on the nexus s I'm using and I have it set to check only once an hour. But if I have it active or set to fetch once an hour it doesn't change how much more of the battery is used. But when I use it I'm lucky if I leave work with more than 50% of my battery left. Delete the account from my phone and I leave work with 80-85% battery left.
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Polling your exchange every hour uses way more battery than setting it to push notifications. Also if you get 100 corp emails a day then its gonna be consuming more battery than if you get 5-10 emails/day. I use exchange with push and it barely registers on my battery usage.

Day 2 since my phone killed itself in less than 4 hours, battery seems to be draining normally again today so I guess it was just a glitch.
At least I think it's normal even though it seems high to me. Took the phone off the charger and the battery status read 95%. Locked the phone and checked back exactly 1 hour later and it was at 90%. Is that normal, 5% an hour just idling? The only account I have syncing is my google account, and my gmail isn't very busy. I have twitter, facebook, google+ installed but none of them are set to sync. Checked what was using the battery and the top was cell standby, followed by android system, followed by phone idle.

Get Battery monitor widget and have a look at your history. That'll give you an idea about whether it's actually going to sleep when it should. You also need better battery stats and find out if you have apps keeping it in wakelocks.