Develop Bugs

Desire battery life

Any pointers for increasing battery life? I've disabled live wallpapers, picked a dark background, set friendfeed etc to update every 4 hours, and it's still not great. Phone is new, should I expect battery life to improve as battery gets used a bit?
Are task killers worth using? Seems to be some debate that they might actually cause more problems than they solve.
I've gone through forum and found lots of generic advice but would appreciate any ideas people have tried on the Desire.
Do I *really* need to wturn off wifi when I'm not using it? Isn't the phone smart enough to not use it when a known-network isn't present?
Cheers

From my experience i would advise against having a task killer running.
I used to have one running on my N1 and thought, "Great, i can free up memory". But you really don't need to do that with Android.
Having disabled it from running, I get to teh end of the day and I have between 75 and 85 battery, after having done a fair few phone calls, some net fun and data access.
I still have a task killer but I use it infrequently and dont have it running - i let it "kill" itself after running it.
I found they take up a good deal of battery life. But that's just my opinion.

isaw said:
From my experience i would advise against having a task killer running.
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Of course!
The classic task killers kill services that are sleeping and do no eat battery.
A few minuts later, on some receivers ( connexion to internet, message or SMS received) these services will restart, and that's where they are eating battery.
If you hadn't killed them, they would have done that without eating battery.
Waking up and then going to sleep is really less battery-eater than restarting the whole service.
So, please forget about all these task killers or do that in a smart way. Only kill your game or the latest app you used!

Battery life will improve over the first weeks use. Needs a few charge cycles to achieve full capacity.
Although the battery life might not be as good as some other "imore ipopular" handsets at least you can buy a second reasonably cheap battery if you know you will be a couple of days away from a possible charge (camping etc).

zzleezz said:
Battery life will improve over the first weeks use. Needs a few charge cycles to achieve full capacity.
Although the battery life might not be as good as some other "imore ipopular" handsets at least you can buy a second reasonably cheap battery if you know you will be a couple of days away from a possible charge (camping etc).
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You serious? I am guessing you're referring to the iPhone, the smartphone that is on charge more times than its off charge?
My Desire hands down beats an iPhone for battery life by almost 100% - only ever got 1 day of an iPhone at best - Desire is approaching nearly 2 days full usage, I am no lite user either.
For battery life the Desire is one, if not the best out there at the moment.

thank christ for that, i presume it improves after a couple of charges. mine was new on friday and the battery's pretty uninspiring so far...

landwomble said:
thank christ for that, i presume it improves after a couple of charges. mine was new on friday and the battery's pretty uninspiring so far...
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My Desire has been up for 21.5 hours and has 3 bars left (according to the settings battery meter) but I've been driving around most of the day with spotify on listening to music, quite a bit of surfing, emailing, calls and a few texts.
I reckon it's probably got another 5+ hours to go yet.
My phone is quite new and battery life is starting to improve daily now.

Hmm... struggle to get more than 5 or 6 hours out if mine under relatively light usage, maybe 20 mins calls and 3 or 4 texts, if I use browser it flatten quicker still, the battery use status usually says Android OS itself has used most battery.
Hoping it will improve, at moment it is poor compared to my TD2 with a smaller battery
P.

had mine about 6 days and my battery is ver poor at the moment. however i remember thinking that about the G1 at first and it got better.
still was luck to get a full day from it. however i went to europe the other week (from uk) so turned all roaming data and syncing off and it lasted 4 days.
fingures crossed battery life increases on the desire, gor a car charger on orded fron fleabay so i should survive
i loved my G1, and found it hard to upgrade, first time thats ever happend, but wow this desire is differnt class, my wife has the iphone and is green and my 16 year old son is gutted he got the hero only 6 months ago.

Re: desire battery life
I've been running my desire for nearly two weeks now.
As usual WiFi & gps are the main culprits.
On average, I have exchange & GMAIL push on 3G all day with a bit of Facebook, sms & several min long calls without going past the three quarter mark by 5:30pm . However as soon as I switch on WiFi at home for browsing, reading news feeds, market etc, bang goes my battery!
Turn off 3G and sync and use it as a phone.......great battery life!
Sent from my HTC Desire using the XDA mobile application powered by Tapatalk

Yea not sure how you guys get good battery out of it. I have everything off, dark background, no synching due to having mobile network off (only thing setup to sync is email every 2 hours). I take a few phone calls maybe 30-40mins, do about 15 mins of surfing, 30 mins of music through headphones at low volume, and a game for 30 mins. That pretty much concludes my battery life for the day (is usually at around 20% left by the time I get home).
I find if I browse the market and download/install apps, my battery will go down very quickly.

Got my desire for a week now and it lasts me 2 days woth some movies, wifi and messaging. if i go even lighter, only messaging and calls it lasted me almost 4 days. it has great battery in my opinion, better than my old hd2 and even better then my old old diamond

Over in General we found an issue with the calendar app keeping the phone from going into sleep mode - That could be a cause for poor battery life.
The thread is here (remove spaces please):
h ttp:// f orum. xda-developers.com/showthread.php?t=666404

My Desire have no problem on battery so far tho, 1½ day with normal use is no problem. litle use i can use it around 2 days, but with alot off things running i would say for sure it works over a full working day.

Mine has been running for 20 hours now, I have mainly been calling, texting, surfing the net (mainly facebook), and playing a game a couple of times.
I'm not really sure whether this is good or not, I would rather it lasted longer than this, as it is due for a charge within the next few hours, and this is a bit of an awkward time to need to charge it. If I wasn't off work today I'd have a dead phone before I got home.
I don't like to charge mine before it tells me too, I like to think it'll improve the battery life over time? Is this right?

those batteries are not affected by memory effect. charging everytime you can is better than drain battery to 0%

HTC have said there is a software issue with battery levels hench the charging issues. Fix in the future they suggested.
Weather this effects the actual life of battery not sure.

I have just come from the HD2
At the beginning, everyone agreed that the battery life was god awful, and a month or so in everyone reported that the battery life was outstanding!
I can confirm this, to start with it wouldnt last me a day, by the end of it i could leave 3g and wifi on all day with everything running in the background and get a good 2 full days out of it!
I just received the desire yesterday, i gave it a full overnight charge and i must report that for the first charge the battery life looks very promising
I have used the phone VERY heavily even for me with about 100 texts, an hour talking, an hour on the internet and syncing every 15 mins or so and i have 2 bars of battery left, and i said, the battery is only going to get better!
You should look at power management tips for the HD2 as most of them apply, for example disabling 'automatic backlght' and setting it yourself because that alone can add about 30% to your battery life.

currently at 2 days 15 hours with 6/10 battery bars left.
i have gps/wifi/internet disabled and turn them on with the settings widgets when i want to use them. screen brightness at about 20%
the battery is great IMO

Guys could u please tell if I should when receiving my phone charge it directly (full charge) or it's better to empty it completely and then charge it ?
Thanx

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?
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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.
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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...
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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........

Horrible battery life with their "extended" battery

I call it "extende" battery because it's 250maH more than the stock, big whoop.
I have maybe 10-15 calls per day. I unplug at 10am and by 4-5PM I am at 14% battery. There is NOTHING running. I even switched to CDMA only from LTE/CDMA and it didn't help much.
Any recommendations? I am about to return it. My HTC Thunderbolt which has the WORST battery life of ANY phone lasts me through the day and that's with Facebook and other notification apps.

Wait for 4.03 and see if that helps. Otherwise, turn down screen brightness, turn off LTE, and get better reception. Also, charge it every chance you get.
Sent from my Galaxy Nexus using xda premium

I can't fix any reception issues. This has horrible reception compared to my Thunderbolt as well which itself was bad with reception.
I have it on 3G only and the screen is already turned down.
I mean no disrespect but if the only option is to wait for a "patch" to fix this I probably should return it.
I paid out of contract price for this phone. $649.99 + 8.1% sales tax.
Don't get me wrong. This phone is blazing fast compared to my Thunderbolt but in the end I may just exchange it for an iPhone 4S which has sucky battery life but I can get through 2-3 days on a single charge.

If you even have to think about getting an iPhone, this phone isn't for you.
Seriously, something is probably wrong with your device. I get no reception issues. Sounds like that is the brunt if your issues.
Sent from my Galaxy Nexus using XDA App

I would say return the 2100mAh battery at least but don't return the phone. LTE is a huge battery hog as is and with the size of this screen it isn't helping either. I'm anxiously awaiting either Mugen or Seidio to make a decent extended battery for it. There is a generic 'made in China' 3800mAh battery currently circulating around eBay pretty cheap, although I haven't tried it out myself yet.

How long have you been using the extended battery? You have to give it at least a week before making any decisions.

I've had the phone since Monday/Tuesday

You should first compare with the standard battery with the same usage pattern. If the standard battery gives you more time then there's a problem with your extended battery. If the standard battery gives you less time, then the extended battery is okay but you should look at your rom settings instead.

Relevant http://www.anandtech.com/show/5254/investigating-the-galaxy-nexus-lte-signal-issue
Sent from my Galaxy Nexus using xda premium

LVNeptune8 said:
I call it "extende" battery because it's 250maH more than the stock, big whoop.
I have maybe 10-15 calls per day. I unplug at 10am and by 4-5PM I am at 14% battery. There is NOTHING running. I even switched to CDMA only from LTE/CDMA and it didn't help much.
Any recommendations? I am about to return it. My HTC Thunderbolt which has the WORST battery life of ANY phone lasts me through the day and that's with Facebook and other notification apps.
Click to expand...
Click to collapse
If you're using the phone lightly and losing 85% in 6 hours, then there is a hardware problem. Don't buy into the hype that an OS update is going to fix the problem, it probably won't. I have great battery life on my GN using 4.0.2. I think a lot of people have a hardware defected phone, and are in for a surprise when the OS update launches and doesn't fix the battery issues. The Galaxy S already got 4.0.3, and users are still reporting massive battery drain.

Carry a few batteries or a charger and enjoy.
Sent from my Galaxy Nexus using Tapatalk

I have found that the battery life I get with my extended battery is above and beyond anything I would have expected. Use WiFi if it is available for you at work or at home because it's typically faster (unless you have 4G signal and slow wifi) and uses much less power than typical cell radios.

milan03 said:
Carry a few batteries or a charger and enjoy.
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Lol totally a reasonable way to keep your phone functional. Hey, just sew another pocket on your jeans just to hold cellphone batteries, no biggie.

I think battery life varies wildly depending on individual circumstances.
My area has stellar LTE reception, I keep the screen at 30% brightness, and I do light web browsing, RSS viewing, and podcast listening.
With the extended battery, I get anywhere from 9-12 hours before hitting 5% battery. Battery usage typically shows ~50% screen and ~20% Android OS.
Granted, battery life dips significantly when gaming or watching Netflix, which I always do at 100% brightness.

Stockmoose16 said:
If you're using the phone lightly and losing 85% in 6 hours, then there is a hardware problem. Don't buy into the hype that an OS update is going to fix the problem, it probably won't. I have great battery life on my GN using 4.0.2. I think a lot of people have a hardware defected phone, and are in for a surprise when the OS update launches and doesn't fix the battery issues. The Galaxy S already got 4.0.3, and users are still reporting massive battery drain.
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Click to collapse
although Nexus S has 4.0.3, the update for Galaxy Nexus will be designed for that specific hardware; thus battery life, performance etc will be completely different.
Sent from my Galaxy Nexus using xda premium

I have the extended battery, using Roman's ROM and I go to sleep at night with about 25% battery left. I make about 5 calls a day, lasting about 20 minutes each. I surf on the phone a LOT, but am always on wifi when surfing.
I have always found that finding the right ROM with the best battery life (sometimes using different kernals) is a necessity with smartphones.

This is ridiculous. Unplugged for 1 hour and now it's at 44%. Absolutely nothing running. I watched it drop from 46-44%

LVNeptune8 said:
This is ridiculous. Unplugged for 1 hour and now it's at 44%. Absolutely nothing running. I watched it drop from 46-44%
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What is your screen on time? How many apps do you have installed? Are you running stock? Has the phone actually died?
Just because it says its that low doesn't even mean it's that low. Could be an error in reporting. I don't pay much attention to the percent... I go by when my phone actually dies.

LVNeptune8 said:
Don't get me wrong. This phone is blazing fast compared to my Thunderbolt but in the end I may just exchange it for an iPhone 4S which has sucky battery life but I can get through 2-3 days on a single charge.
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Click to collapse
Get the iPhone and enjoy the tiny screen and amazingly horrible display. Then enjoy the fact that you can't do anything software related to the iPhone as well. And finally, go wait online for the next iPhone flop like every other fanbois out there and don't bother coming back to visit XDA where people enjoy the most up to date technology and don't waste Thread space by posting more useless threads.
Thanks I'm done ranting now.
Sent from my Galaxy Nexus using XDA App

I got the official extended battery and have noticed much greater battery life. I now get a full day with heavy use
Sent from my Galaxy Nexus using xda premium

[Q] Did I buy a well disguised lemon?

I picked up a T-Mobile S4 on amazon for a pretty good price. This price wasn't "too good to be true" or anything like that, it was just a fair price for what I think is already a decently "mature" device.
Anyway, the phone is in like new condition and the owner had it presumably for about 6 months at least. I know this because he indicated that he had it in an otter-like case for that amount of time.
The first thing I immediately noticed was how fast the battery drained. He shipped the phone with the battery fully charged but still I just noticed that customizing things and changing settings I seemed to lose battery very quickly. My experience may be biased by my past two devices the Xperia Z Ultra and the Note 2 both which have large batteries, however, I installed CarbonRom and still experience what I believe to be abnormal battery drain.
Also, the top half of the phone gets noticeably warm from normal usage like web browsing or flipping through app settings. I do NOT game. The is a distinct difference between how the top half of the phone feels versus the bottom half. It's mostly centralized around the camera. I used gsam to check the temperature of the battery and it does seem normal, however, my brightness is like ~20% and I don't know, my friend who is also on Carbon says he gets amazing battery life. I feel let down by how quickly this thing drains and as I continue to say I don't think it is normal. I ordered a spare RAVPower 2600mah battery to see if there's a problem with the battery but I'm really not hopeful.
What do you guys think?

I too was disappointed with the M919 when I first got it. I have another S4 (i9505) which is rooted I get great battery life using the same sim card. My guess is the LTE radio is what sucks up the juice.
I have rooted it today just to install intelli3g and it does help save battery life. This app automatically switches to 2G, 3G, 4G and LTE depending on what you tell it to do. It's like a tasker type app.
Try to disable apps like google+ and the like if you haven't done so.
Also don't forget to disable Wifi scanning and Wifi on during sleep.
And if you really don't need "Data" to be on all the time, turn it off.

Dajinn said:
I picked up a T-Mobile S4 on amazon for a pretty good price. This price wasn't "too good to be true" or anything like that, it was just a fair price for what I think is already a decently "mature" device.
Click to expand...
Click to collapse
A bad battery would be my first thought. It's logical. It fits the facts you present. And it's a common problem.
Plus it's a $10 fix.
I would doubt the drain was software related if you get the same bad battery results with a completely different ROM.
And I'd doubt that it's hardware related because a hardware fault that will drain the battery fast is likely a hardware fault that will prevent the phone from working at all. battery drain is caused by short circuits. Electronics don't work and play well with short circuits.
So I think you are being reasonable by trying a new battery. I don't think it's unreasonable to expect it to help.
If you want to squeeze out every possible second of battery life, check out the link in my signature about battery like while idle as well. It'll show you how to improve your battery life.

[Q] Dead end with Samsung can I have your feedback please

TLR Anyone willing to see if their tab pro drains battery when fully powered off. Like overnight when you're sleeping or at work. Thanks
Hi,
I got a 10.1 tabpro back at the end of Jan. I thought it would be a massive step up from my Nook HD+ (rooted) but it's not. Not only is it slower than expected the battery life is atrocious. Samsung advertises over 2500 standby hours for their 10.1 tablet, I get 200. Also I get about 6 hour video, mp4 files, not 10 and I don't like a bright screen, I know companies exaggerate but this is daft. But it's the standby that's a problem, having to charge it every few days in case I want to use it is a big step down from my Nook.
It's been into Samsung repair 4 times now and I'm currently at a dead end.
Problem
It loses 0.5% an hour on standby even with wifi, gps, updates off etc
It loses 0.5% an hour fully powered off. Fully powered down. OFF, not on standby. Just to be clear
Compare this to my nook with a smaller battery capacity which loses less than 1% a day. I've tried turning off other android devices (mobiles & tablets) and none lose battery over 12 or 24 hours when powered off.
Current situation
It's been in 4 times, it has been returned with a squeaky corner which they've failed to repair and the retail box is torn and tatty like they played football with it.
I've now been told
I have spoken to our product specialist regarding this and the decline in battery life over the 24 hour period is not considered to be unusual. In the 12 hour period where the tablet was powered on, even though the screen is off and apps closed down the tablet will still be transmitting, searching for system updates or connecting to networks or wireless. The 12% decline in battery is considered normal for this kind of activity.
Click to expand...
Click to collapse
This doesn't address that wifi, gps, updates etc is turned off and drain whilst it's powered off. I responded 2 weeks ago but there has been no reply.
Feedback please
1. I've been all over the internet. I've tried greenify, I've tried battery calibration, there's a ridiculous amount of bloatware that I can't delete but I've reduced apps running as much as I can. Does anyone have any other ideas?
2. What's your tablet like, does it lose battery life when powered off? I've seen people posting on here about their 8.4 inch tabpro and they've put screen shots showing better standby battery life than my 10.1 with a much better battery capacity.
I've attached some screen shots, less than 3 days and it lost 33% doing nothing on standby.
I would really appreciate if anyone could feedback on battery life when switched off, is someone able to test theirs for me?
Many thanks,
Anna

Is someone willing to see if their tab pro loses battery even when powered off?
Thanks

Uh-oh. I hope this is unusual and anomalous. I'm actively seeking a replacement for my HD+. I want to love it. I *SO* want to love it but it infuriates me that the browser crashes so often. Yours? Which ROM?

Nook is fine, It's the Samsung that's utter pants. Nook battery loses less than 1% a day on standby and screen is good. Surprisingly I thought the octo core samsung wouldn't be laggy but it is, it's not that much better than the Nook.
I have cyanogenmod 11 I think. Yes the browser crashes but that's partly because many sites are badly designed and web 2.0 is badly implemented and I use Dolphin because I like the format however it's a terrible browser for crashing. The new Guardian site I struggle with on tablets and mobiles no matter what browser for example.
Anyone willing to test their tabpro for me????

I'm actually on my 3rd day with my 8.4 it's 10:35 pm and I still have 35% left

cloud71 said:
I'm actually on my 3rd day with my 8.4 it's 10:35 pm and I still have 35% left
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I don't understand. 3rd day of what, off, on standby, has it been used?
Mine loses battery at 0..5% an hour on standby and fully powered off. I'm trying to establish if other tab pro's have the same level of drain on standby and powered off. Can you give me more info please? Thanks

carltonbp said:
It's been into Samsung repair 4 times now and I'm currently at a dead end.
I've attached some screen shots, less than 3 days and it lost 33% doing nothing on standby.
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Click to collapse
Take the rear cover off, disconnect the battery from its connector. Bring it to a repair shop where they can do a solder work. Ask them to re solder the battery connector, this rework only takes under 5 minutes. It will fix the problem of battery quick discharge. If the problem is still the same, you only need to replace the battery, cost only around $30 for new battery.

Beut said:
Take the rear cover off, disconnect the battery from its connector. Bring it to a repair shop where they can do a solder work. Ask them to re solder the battery connector, this rework only takes under 5 minutes. It will fix the problem of battery quick discharge. If the problem is still the same, you only need to replace the battery, cost only around $30 for new battery.
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Click to collapse
Thanks but it was only a few months old so well within warranty.
They replaced it with an tab s 10.5 (no more tabpro's available). Tab s gives me the battery life I expect and speed. Big difference between the two is the tabpro used up a lot of battery with 'tablet idle', well over 50% whereas on the tab s it's a few %. I think the tabpro didn't quite deliver, it was discounted quickly, the software wasn't right plus squeaky case, but so far imo they seem to have got it right with the tab s. Despite the lower capacity battery and bigger screen it lasted me over 5 days and that included setting up and installing apps. The tabpro by that point would have been long dead.

I'm glad you get a new replacement but this's a common problem of Samsung tablets . Be aware of this problem is the future of battery quick discharge. Most users just simply think this is a problem of battery.