Interesting battery behavior

The past three ROMs that I've used - Cyanogenmod 6.1, UD 2.4/5, and now BB 6.1 - my battery has behaved very erratically. There has been a lack of consistency in drain times; for example, one day I talked on it for nearly 3 hours (total, not all at once) and the screen was on for nearly 2 hours, yet the battery was only at 40% when I got home. The previous day, I talked for 15 minutes and only listened to [locally stored] music, yet the battery was at 20% after less time.

On top of this, about 65% of the time, during discharge it will skip 30%. Once it hits 20 and I plug it back up it is back up to 50% or 60% in a matter of minutes.

I'm not certain whether this is a device problem or it's just time for a new battery. Thoughts, suggestions, comments?

 

http://www.droidforums.net/forum/ultimatedroid/109964-droid-calibrated.html

 

When you flash a lot of roms you'll need to wipe battery stats occasionally.

 

seriously.. check out my stupid battery meter. a couple of days ago i snapped two pics with flash and i went from 90 to 20%. wtf. how is android this stupid that it needs to be calibrated??

 

lol. oh ok!

 

seriously i've only seen this problem pop up on android 2.2. i've been a user since the G1.. this is really frustrating.

once i did a battery pull and it seemed to fix it, but it went right back down to 20% once i sent a text message. wtf?

 

its either a bad battery or you need to calibrate it again. did you install bb on a full charge or plugged in?

 

plugged in at 90%.

 

clear battery stats in emulator?

1. su
2. rm /data/system/batterystats.bin

 

i did it through recovery. should i do it again and wait til it's full?

 

doesnt it say to full charge then run it completely dead then full charge then run code?

 

From my understanding you do have to let your phone completely die, there's a hardware aspect of it that can only be reset by doing that, wihich I did today actually, my battery had an x on it for about 3 hours, 1 of those being complete navigation use, overall latest bugless lasted about 16 hours mild - moderate use (2 1/2 hours navigation)

Sent from my Droid using DroidForums App

 

http://www.droidforums.net/forum/ultimatedroid/109964-droid-calibrated.html
Updated second post

 

I deleted my battery stats this morning after a full night of charging. I took it off charge at 6:30 this morning - it's now 4:00 PM and I have 5% left. Should I expect this to get better over the next few discharge cycles?

 

how much did you use it throughout the day, i mean 9 1/2 hours is pretty good. you made it back to your charger right?