Database Users

Dood, Its a bit ridiculous.

Ok, I have read literally countless threads about the less than desirable battery life of the G1. However, no situations quite like this.
I bought my Dev G1 used (used for 3 weeks, supposedly). I was noticing that the battery was lasting like two hours, of course I was using it, and it was downloading some large updates.
However, Last night I went to bed about 11:30, and my phone was at 100%. I put the phone on standby, (because I didn't want to charge it all night on a full battery). I woke up @ 6am, and the phone was completely dead. I will stay on for about 30 sec and then shut off.
Thats a bit ridiculous! 6 hours on standby???
I left the phone off, and I am now charging it, in an attempt to "Condition" the battery, but Im not convinced that the battery isnt bad.
Any Opinions/comments?
**EDIT: Oh yea, I forgot to tell you. "Use only 2g networks" is checked, and GPS and Wi-Fi is off.

1. did you check that it's an original battery and not some no-name?
2. as you said, try to condition it for ~2 days, always let it run dead, try to switch it on again once or twice, keep it off and charge it 2 more hours after the led is green. repeat this four, five times, if nothing changes, call t-mobile and complain. they might send you a new one.

Sounds odd for sure. If I leave my fully charged dev phone on standby (and 3G no less) overnight it's never below 80% when I wake up 6-9 hours later. Usually 85-87%.

hgsadfwsedf said:
1. did you check that it's an original battery and not some no-name?
2. as you said, try to condition it for ~2 days, always let it run dead, try to switch it on again once or twice, keep it off and charge it 2 more hours after the led is green. repeat this four, five times, if nothing changes, call t-mobile and complain. they might send you a new one.
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Its not a no-name battery. I am an AT&T customer. I hope that conditioning it helps.

sorry, didn't pay attention

Its all good. Im just really frustrated. My Tilt lasted me two days of moderate use. I honestly need at least 6-7 hours of moderate use out of this phone, or Ill be forced to sell it.

I got 28 hours of moderate use out of my phone yesterday and it was only down to 20% at that point. You said you take it off the charger once it's full? You should leave it plugged in for a while longer.

Yea, see I left it plugged in pretty much all day yesterday. I was tethering with it, and the USB charges while tethering, Correct? So when I took it off it was fully charged.

don't charge it via usb, ac/dc seems to work better.
don't know why but many people say so..

Update: I plugged it in to my wall charger @ 8:00 am this morning. I just got a green LED. Ill leave it plugged up until about 1:30pm, and post the results later tonight. I hope I can see some difference...
By the way, I notice also that when its plugged into the USB, it gets VERY HOT around the battery compartment

Yes it does get very hot. Tell us what happens when you unplug it later. I noticed this with one of my old Window's Mobile devices, the battery lived less than 15 seconds.

Have you tried using the "Watts" program to measure battery stats.
Maybe you can post a screenshot after leaving it in standby for about 3-4 hours.

hgsadfwsedf said:
1. did you check that it's an original battery and not some no-name?
2. as you said, try to condition it for ~2 days, always let it run dead, try to switch it on again once or twice, keep it off and charge it 2 more hours after the led is green. repeat this four, five times, if nothing changes, call t-mobile and complain. they might send you a new one.
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Click to collapse
Never let a lithium-ion battery run until it is dead!!!!!! They aren't like NICADs, they have no memory effect, and this will damage them. See "Lithium-ion Battery" - Wikipedia
"Furthermore, they may be irreversibly damaged if discharged below a certain voltage."
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Click to collapse

Dredge said:
Its all good. Im just really frustrated. My Tilt lasted me two days of moderate use. I honestly need at least 6-7 hours of moderate use out of this phone, or Ill be forced to sell it.
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On my ATT Tilt I had 2 extra batteries and could barely make it thru a 10 hour shift at work with all three. Now with my G1, I have the same 2 spare batteries, and still barely make it thru a 10 hour shift on all 3. So, lifetime seems the same to me. They both suck batteries.
Shaggy

Well, After charging the battery yesterday afternoon, I used it heavily for about 9 hours. I used it way more than I would under normal circumstances. That was just after 1 cycle. It finally died about 10:00 and I left it off and charged it over night (about 7 hours). I will see if it lasts through one full day of normal use.
Im a little concerned about what Bill said. I certainly dont want to hurt the battery. This is the first I had even ever heard of this being potentially damaging.

Bill Zimmerly said:
Never let a lithium-ion battery run until it is dead!!!!!! They aren't like NICADs, they have no memory effect, and this will damage them. See "Lithium-ion Battery" - Wikipedia
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i meant let the phone run dead, not the battery..
ninjaedit:
clarifying it further: use the phone until it shuts down, switch it on again, wait until it's off, switch it on, wait until it's off and then charge it using the wall charger.

What Bill said is true but conditioning the battery once a month or so is not as destructive as it sounds.
Just try not to do it all the time and it won't kill your battery.

All I know, is that it helped tremendously after just one time. it went from 6 hours in standby to 9 hours of heavy use

i took my ADP off the charger at 6am today...n nw its 1am...power manager show battery level at 29..n i used it to click a few pix today...listen to some music for about 2hours..so all in all i am pretty satisfied with what i have got..but some(some means like maybe once in a week or something) days the battery doesn't even last 4-5 hours..even when its on standby..i simply don't understand why this happens...!!!!

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.
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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).
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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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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
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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?
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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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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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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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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..
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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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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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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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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.

Battery Life

Rather than clogging up other threads with my battery experiences, I thought I'd summarise where I'm at, and see how other people are doing with their battery life.
So I started yesterday on a full charge, and by 2ish the phone was dead. I used it fairly heavily, but wifi was off. I don't think I made any phone calls, and didn't use gps. It was mainly messaging and using the xda app. I had changed my screen brightness to auto the night before, so thought this might have reduced the battery life.
I then left the phone off, and charged through till just before 5pm. At this stage, the phone was up to between 90-100% charge. My intention was to see if I could get through to this afternoon on this charge. Last night I made a phone call for about half an hour, and used gps for about 10 mins driving in the car. Other than that it was a bit of messaging and browsing, but not heavy use by any stretch of the imagination. I had wifi off, facebook sync every 4 hours, and screen brightness set to about 50%.
This morning I woke to less than 10% charge on the battery, so have left the phone at home charging, and I'm back to my hero...at least for the morning.
I must admit, I'm starting to get concerned, because I really don't think I'm using this phone more than my Hero, and I could easily get a day out of it (unless I was going for a long run using some kind of gps app).
What are other people's experiences? I'm surprised I'm not hearing more about this, and I'm hoping mine is just a one off!
**UPDATE**
Today, 12 hours after taking my phone off charge, I have just under 20% charge remaining. The phone is now on it's fourth cycle, and although I haven't used the phone quite as heavily as yesterday, I have still used it quite a bit and have had WiFi on the whole time. This is still not amazing battery life, but it is still much improved. It definitely illustrates that the battery may take a few charge cycles before it optimises itself.

My first full day was yesterday.
WiFi on all the time. Screen brightness set to automatic. Twitter and facebook refreshing every hour. Weather every 4 hours.
Unplugged the phone at 7am, 100% charge.
During the morning I flashed the phone twice (due to the proximity sensor issue) so it probably recieved an extra 10 mins of charge.
Following the flashing, WiFi went straight back on so I could download all the apps again, and resync sense and all the contacts. There was some playing of games, some use of Google Goggles (so camera use there) and some web browsing.
By 13:00 I was down to 90% battery - which was pretty good I thought.
Through the afternoon I didn't get to use the phone much apart from a couple of short gaming sessions.
By 17:00 I was down to 80%. I got home from work and played around on the phone until my wife got home and we went out for a meal. The pub we were in had no signal, and I didn't really play around with the phone.
By the time I got home and went to bed, the phone was probably around 65% full.
So not a heavy day of use, but not far off a standard day for me - so not too bad as far as I'm concerned. Certainly about 30% better than my Touch Pro2 was!

I think we need to define a consistent way to measure battery life for Android.
Something like ACID test for web ... Quadrant for benchmark ...
I don't know, maybe we can agreed on something how to measure it. Or build an app to simulate phone usage which user should run it continuosly and then at the end got the result: Your battery life is rated 4 hours, 10 minutes straight using this test.
Probably not the best measurement, but it should give us a "number" to compare with other devices.
I can only suggest (I am not a developer), but I believe there are a lot of talented coders here in XDA which should be able to build this kind of "standard" app battery measurement pretty easily.

Somebody is recommending 3-4 full charges cycles for battery optimization. Do you think it will really help?
Battery is really deal breaking issue for me.

very helpful thread.
as mentioned few post earlier, there really should be a battery benchmark tool.
so was your wifi and/or 3g turned on the whole day?

jiidaineko said:
very helpful thread.
as mentioned few post earlier, there really should be a battery benchmark tool.
so was your wifi and/or 3g turned on the whole day?
Click to expand...
Click to collapse
My friends also lasted over a day with pretty good use, there seems to be better results with the brightness on auto...from what I have picked up on the forum...maybe a test is need to see how much difference there is between full brightness on one battery charge and auto on the other.

Yupe, the battery benchmark should not be so complicated.
Start the app with 100% Battery life
Some options in the app (for features that might NOT be in an Android phone or might not be available at the time?):
[ ] Turn on Wifi
[ ] Turn on GPS
[ ] Turn on Bluetooth
Set the app to WAKE all the time, display turned ON all the time of the test
Set Keyguard to OFF (device will not be locked)
Set Brightness to AUTO
Set all speakers to SILENT
Set vibration to OFF
Then loop until battery down to 5%, perform the below tasks in sequence:
* Play movie for 15 minutes [speaker muted]
* Browse to website??? be careful not to overload the website
* Doing arithmatic
* Doing 3D
* Play MP3 [speaker muted of course]
As soon as the battery down to 5%, app stop and display result ...
And of course restore all the settings.
The app should use generic API that is supported by Android, not some hacky wacky if you know what I meant.
Please if someone can code this, that would be very nice! Standard XDA Battery Measurement app for Android!
jiidaineko said:
very helpful thread.
as mentioned few post earlier, there really should be a battery benchmark tool.
so was your wifi and/or 3g turned on the whole day?
Click to expand...
Click to collapse

gogol said:
Yupe, the battery benchmark should not be so complicated.
Start the app with 100% Battery life
Some options in the app (for features that might NOT be in an Android phone or might not be available at the time?):
[ ] Turn on Wifi
[ ] Turn on GPS
[ ] Turn on Bluetooth
Set the app to WAKE all the time, display turned ON all the time of the test
Set Keyguard to OFF (device will not be locked)
Set Brightness to AUTO
Set all speakers to SILENT
Set vibration to OFF
Then loop until battery down to 5%, perform the below tasks in sequence:
* Play movie for 15 minutes [speaker muted]
* Browse to website??? be careful not to overload the website
* Doing arithmatic
* Doing 3D
* Play MP3 [speaker muted of course]
As soon as the battery down to 5%, app stop and display result ...
And of course restore all the settings.
The app should use generic API that is supported by Android, not some hacky wacky if you know what I meant.
Please if someone can code this, that would be very nice! Standard XDA Battery Measurement app for Android!
Click to expand...
Click to collapse
the app should log the result too.. since some phone is dead by time 5% due to calibration..

@Dazultra2000: I would almost trade the proximity sensor problem for the battery life you're getting!
In any case, I'm gonna leave my phone charging till half an hour after the green light comes on, then I'm gonna try another day of normal usage. I'm going to turn wifi back on, as I usually would, and set screen brightness to auto.
With my Hero I used to go for runs using a GPS app to log the route, I'm not going to bother trying that with this phone until I'm sure I can survive a day.

Basil3 said:
I then left the phone off, and charged through till just before 5pm. At this stage, the phone was up to between 90-100% charge. My intention was to see if I could get through to this afternoon on this charge. Last night I made a phone call for about half an hour, and used gps for about 10 mins driving in the car. Other than that it was a bit of messaging and browsing, but not heavy use by any stretch of the imagination. I had wifi off, facebook sync every 4 hours, and screen brightness set to about 50%.
This morning I woke to less than 10% charge on the battery, so have left the phone at home charging, and I'm back to my hero...at least for the morning.
Click to expand...
Click to collapse
I don't know when you wake up but that could be like 14 - 15 hours that you mentioned which possibly isn't all that bad (plus the extra 10% you had remaining). Personally I want to see what it's like when you unplug it at 8am, not at 5pm the night before since I can't see any good reason not to leave the phone charging over night anyway.
If you then manage to get about 10 to 12 hours or so then there probably isn't much issue. Granted you weren't using it while asleep so the battery shouldn't drain overly quick but I wouldn't want to use your test as an example of a days use.
Thanks for the info but. If I was you I'd just have a car charger too if you like to use GPS...I can't see any reason not to.

Smigit said:
I don't know when you wake up but that could be like 14 - 15 hours that you mentioned which possibly isn't all that bad (plus the extra 10% you had remaining). Personally I want to see what it's like when you unplug it at 8am, not at 5pm the night before since I can't see any good reason not to leave the phone charging over night anyway.
If you then manage to get about 10 to 12 hours or so then there probably isn't much issue. Granted you weren't using it while asleep so the battery shouldn't drain overly quick but I wouldn't want to use your test as an example of a days use.
Thanks for the info but. If I was you I'd just have a car charger too if you like to use GPS...I can't see any reason not to.
Click to expand...
Click to collapse
Yeah, I would normally charge overnight, but since I had given a charge through to 5pm I wanted to see how it lasted....see if I could get through 24 hours. I wake up at 5am, so that was around 12 hours, with only 5-6 of those hours being time when I would've actually been using the phone. This is also bearing in mind that I had started yesterday on a full charge and the phone was dead by 2pm.
The GPS thing in the car was only to do a quick test, literally 10 mins. I need to buy a new car charger with micro USB, but I just made a note that I had done this because I knew it would affect the battery.
Anyway, we'll see what today brings.

Basil3 said:
Anyway, we'll see what today brings.
Click to expand...
Click to collapse
Looking forward to it.
And yeah, for me personally a "days" charge really only needs to equate to about 12 - 14 hours. Thats probably the longest I'll go without having a charge anyway unless I'm camping or something in which case I'll likely fall back to a Nokia anyway.

Hi, just to add my experience with a complete different phone e.g. iPhone 3GS (developing apps on it, now switching to Android ):
Charge at night till 8 a.m. so 100% then usually in a day:
- Go to office, read/write emails, surf a bit on forums, blogs and so on
- Make call up to 30-60 minutes per day
- Play some games, test our application/games on it (so connect and receive some extra charge)
- Use WiFi at office
- Use Google Maps up to 15 minutes per day
- Back at home at 8 p.m.
- Use again emails and surf on web for 30 minutes
Around 11-12 p.m. it has less than 25% of battery, so 14-15 hours of usage drain battery up to finish it, not to mention that I'm forced to switch off push notification because they drain my battery in 5 hours!!!!
So just to say that, no one is perfect, and this devices today really do a lot of stuff, I think as Smigit suggest 12-14 hours are acceptable.
Have also tested/used iPhone 4, I don't seen any big improvements on that side.
Just my two cents...

praying for decent battery, please please please!
My HTC legend is pretty poor really, but I can live with it. If DHD is worse I don't think I can pull the trigger.
There is a thread in th Legend section about 1800mh HTC batteries (from another phone) that fit the Legend. Maybe there will be an option to do something similar with DHD.
I would pay £50 more for a 1500mh battery - why did they put the smallest battery in the largest screen?

GeoMil said:
why did they put the smallest battery in the largest screen?
Click to expand...
Click to collapse
LOL, that's why everyone wonders

GeoMil said:
praying for decent battery, please please please!
My HTC legend is pretty poor really, but I can live with it. If DHD is worse I don't think I can pull the trigger.
There is a thread in th Legend section about 1800mh HTC batteries (from another phone) that fit the Legend. Maybe there will be an option to do something similar with DHD.
I would pay £50 more for a 1500mh battery - why did they put the smallest battery in the largest screen?
Click to expand...
Click to collapse
can anyone confirm that the 1800mAh for Droid Incredible (that fits HTC Legend) fits desire HD too???

override182 said:
can anyone confirm that the 1800mAh for Droid Incredible (that fits HTC Legend) fits desire HD too???
Click to expand...
Click to collapse
maybe a photo or model no(if any) of battery can help us?

gcd said:
maybe a photo or model no(if any) of battery can help us?
Click to expand...
Click to collapse
maybe no.. cuz its slided up.. ive just noticed while watching the vid.. hurm.. good luck for us waiting for a 1800mAh then
http://www.youtube.com/watch?v=Il1NBIJdx5M
http://www.mugen-power-batteries.co...d-battery-for-htc-legend-bb00100-1800mah.html

No the battery doesnt fit with the Desire HD, if you watch some pictures of your 1800mah battery and than go and take a closer look at the DHD's battery, you will recognize that the pins of the DHD-battery are on its side. the pins from the Incredible Battery are on the bottom.

In 2 hours 30 min heavy heavy heavy use, the battery dropped 20%.
Will do a full day test 2 morrow.