Sudden drop in battery life

[beanboy89]

Ever since I had gotten my Nexus One back in July 2011, I had been really pleased by the battery life. With my usage patterns, I could easily get two days on a charge, sometimes getting three comfortably. All of the sudden, about half a week ago, I noticed that the battery would discharge itself really quickly. It would go from 100% to around 30% in a day. I hadn't changed my usage patterns, nor had I installed any new apps. I went into the settings for any apps that may be loading data in the background (Twitter, Facebook, News/Weather, etc) and made sure background data was enabled, and I always turn off mobile networks (EDGE/3G) and WiFi when I'm not using them. I even went as far as wiping the phone and resetting everything, but no change in battery life. Calibrating the battery by letting it fully discharge and then charging it fully while the phone is powered off also did nothing. I'm at a total loss here. This seems inexplicable as to why the battery life is now so bad.

 

[Y2Ne1]

i change my battery every 6-8 months batteries are stupid like that i had this problem also like 5 months ago i just bought a new battery then BINGO 3-4 days on 1 full charge with every know battery tweaks if you look for battery look in the Nexus Q&A thread someone asked whats the best battery life ... hope i helped

here's the post http://forum.xda-developers.com/showthread.php?t=1569069

 

[beanboy89]

Thanks. I think I'll order a new battery, probably a standard 1400mAh battery instead of one of the larger-capacity extended batteries. I don't really want to add any more weight or thickness to my phone. If that doesn't seem to do the trick, I'll probably just eventually buy a new phone. I've been looking for something different for a while now and this will give me a good excuse to do so. Heh.

 

[beanboy89]

I don't want to jinx myself here, but I may have found a temporary solution. Use only 2G networks. Curiously, about two or three weeks ago, I noticed that the mobile network type has changed from HSPA to HSDPA. AT&T appears to have done some upgrades to bring "4G" to the area. I wonder if the changeover has done something to my Nexus One and now was drawing more power from the device searching for a signal? Ever since I've disabled 3G, I've been on EDGE and I've only lost ~5% battery compared to the near 25% that I had lost on HSDPA. I'll check back if I find out anymore information.

 

[Closed Source Project]

One option is to try to recalibrate the battery. There is a root app out there that allows / guides you how to do this. Just search battery calibration. Additionally, instead of using an app, what you can do is boot into a custom recovery image (preferably 4EXT touch) and wipe the 'battery stats'. Then turn the device off, charge til the LED is green and then leave on the charge for an hour after it turns green (maybe overnight?). Then run the battery full out the next day to properly calibrate it.

Yes, 2G mode only does save a lot of battery. Apps that sync in the background (IE Gmail, FB, Twitter) use battery a lot. From your post it sounded like you have them set to auto update. Disable that or force it to refresh less often. What is sounds like is that your device maybe trying to connect to cell towers but is having a harder time; this may be due to ATT's 'upgrade'. I'm not too sure about that stuff though, haha.

 

[beanboy89]

Just as I had expected, I believe that it is an AT&T-related issue. A friend of mine who has an Aria has been experiencing the exact same battery drain issue that I had been having.

 

[joelshawdow]

recalibrate your battery
1.drain your battery until you get the message "powering off"
2.quickly connect your charger
3.charge it 8 hours straight..

Battery calliberated...well it worked for me...:thumbup:


Sent from my HTC Nexus One using XDA

 

[fs_nexus_one]

Solution

I had the exact same problem. I had a refurbished nexus one, everything was working fine for a month then suddenly one day battery life goes from 14-16 hours to 4-6. I call customer service and search online, do all the battery pull out replace and whatever but no result. Took it to a shop, they couldn't figure out how to fix it but mentioned perhaps I should change the power strip (the black plastic card wich has the power button, camera and flash attached to it). Look at ifixit nexus one teardown for the actual part. So I bought a new power strip, replaced it and my nexus one is back to its original 12-14 hours. Not sure if this will help you, but that's what I did to fix mine.