Battery drain=bad batch of phones?

cerps

Senior Member
Jun 26, 2010
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Being there's so much difference in battery life, I was curious if there might be a bad batch of phones. My phone gets great life and my dad's gets significantly less. He works about 2 blocks away from me and actually has a stronger signal in his building than I do at mine and his battery drops like a rock with nothing running. I'm rooted and froze the AT&T bloat. He's stock.

My serial number contains a PTM and the end number is in the 40000's. His serial number contains PZK and ends in a number in the 30000's. If you have time post your serial # info and how your battery life is.
 

d08speed3

Senior Member
Jul 23, 2010
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I returned my ladies OG and now her battery life is better. Even b4 I rooted it drain was better from prior phone. Could be a batch. That's my lead as well

Sent from my Incredible 2 using xda app-developers app
 

Murasakiii

Senior Member
Feb 23, 2011
753
211
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Portland
I'm contemplating returning my phone just in case of a 'bad batch,' but I'm afraid I'll get a phone that's even worse lol. I can't forever replace phones. I'm just trying to make it work.
 
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Jank4AU

Recognized Contributor
Nov 2, 2010
3,657
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Alabama
Does this phone have the ability or need to reset battery stats? I know you couldn't do it, or it was unnecessary on the SGSII. Just curious if it's a calibration issue.

Sent from my SGH-I777 using xda app-developers app
 

aquariuz23

Senior Member
Mar 3, 2011
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Clifton, NJ
Does this phone have the ability or need to reset battery stats? I know you couldn't do it, or it was unnecessary on the SGSII. Just curious if it's a calibration issue.

Sent from my SGH-I777 using xda app-developers app
Resetting battery stats actually has no correlation with battery life whatsoever. It is not what controls the percentage that we see in screen. I believe it just tracks what apps or system files are or have been using up the battery. Battery stats gets an automatic reset whenever you reboot anyways.

For those with bad battery drain, just try and see what your serial numbers are n post it here to compare.

Sent from my LG-P930 using xda app-developers app
 

Joecascio2000

Senior Member
Nov 12, 2010
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Resetting battery stats actually has no correlation with battery life whatsoever. It is not what controls the percentage that we see in screen. I believe it just tracks what apps or system files are or have been using up the battery. Battery stats gets an automatic reset whenever you reboot anyways.

For those with bad battery drain, just try and see what your serial numbers are n post it here to compare.

Sent from my LG-P930 using xda app-developers app
http://rootzwiki.com/news/_/articles/wiping-battery-stats-is-pointless-says-google-r316

First time I read it, it blew my mind. Talk about placebo effect.
 

DraginMagik

Senior Member
Mar 24, 2010
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The battery life on my phone and seemingly most folks is great. Granted some folks probably live on the cusp of LTE coverage in their area and the radio is killing the battery while liking for signal (that happened to me with my EVO 4G).

If it were all devices, then only the battery life fanatics who shut down everything would be seeing 20hrs on a charge.

I think there's a bad batch of hardware or there.

Sent from my LG-E970
 

DraginMagik

Senior Member
Mar 24, 2010
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seems odd that those who are having the issue are not likely to make to 10hrs on a charge (often 1/2 that)...while others are bumping 20hrs (myself included).

i have 4 emails on constant sync, as well as, facebook, weather, xda and a chess. each day has a couple hours of screen time. 1hr each day of either Pandora or Audible. 20-50 text and @45min - 1hr of phone time. ... in case you think i put my phone in my pocket and forget about it.
granted, i do connect to wifi at home and work. and i live in an area where i have solid LTE coverage at all times.

audible and screen time are my worst battery drains.
 
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cerps

Senior Member
Jun 26, 2010
118
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Where do you go to get the serial number of the phone?

Sent from my LG-E970 using xda premium
We got ours off the box. Not sure where you'd get it in the phone.

Did a little more research. Set them side by side for an hour with screens at same brightness, always on, with Nexus live wallpaper running. Both were hooked into wifi and the microcell. Battery usage over a 1 hour period was pretty much identical (within 1%). Then did some web browsing and hit all the same links and drain was the same. We thought it maybe was just battery conditioning. When I first got it I did 2 full drains and recharges with it off. He did that about a week in and thought it was fixed.

I left and a couple hours later his battery started to tank. Only thing we noticed was his accelerometer hung for some reason and had 5 hours on. He hadn't used anything that should have turned it on so no idea why it got stuck. Turned it off and the battery usage slowed to what one would expect. Then it had another couple minute burst of dropping. that was the last I heard.
 
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aquariuz23

Senior Member
Mar 3, 2011
887
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Clifton, NJ
We got ours off the box. Not sure where you'd get it in the phone.

Did a little more research. Set them side by side for an hour with screens at same brightness, always on, with Nexus live wallpaper running. Both were hooked into wifi and the microcell. Battery usage over a 1 hour period was pretty much identical (within 1%). Then did some web browsing and hit all the same links and drain was the same. We thought it maybe was just battery conditioning. When I first got it I did 2 full drains and recharges with it off. He did that about a week in and thought it was fixed.

I left and a couple hours later his battery started to tank. Only thing we noticed was his accelerometer hung for some reason and had 5 hours on. He hadn't used anything that should have turned it on so no idea why it got stuck. Turned it off and the battery usage slowed to what one would expect. Then it had another couple minute burst of dropping. that was the last I heard.
Lol you ended it with such a dramatic air. "That was the last I heard". Dun dun dun! Lol. Sorry I just played some Alan Wake that's why :D

Sent from my LG-P930 using xda app-developers app
 

droidiac13

Senior Member
Jul 19, 2010
3,146
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Twin Cities, MN
The one thing I've notice about my phone is that when looking at my wireless icon in the notification bar, there is something transmitting 90% of the time (download it appears as it is just the bottom arrow blinking). It does this even when sync is turned off. I've gone through the phone and I can't see any app running. Has anyone else noticed this?

Sent from my LG-E970 using Tapatalk 2
 

Murasakiii

Senior Member
Feb 23, 2011
753
211
0
Portland
I'm convinced there's a bad batch.
My replacement phone literally just ran all night. I had been awake backing up my system with Titanium, and it stalled before I went to bed. TB kept my phone running for 8 hours straight with the screen on and my phone is only at 18%.
If your battery life is ****, return it. Currently running Stock, rooted and unlocked with dormancy fix.