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Help Battery percent always wrong

drosseau

Newbie
I've been having an odd problem lately. I know someone posted about this before but I couldn't find the post. Anyways, my phone has great battery life but the percentage is always off. I unplug it from the charger about 7am and usually about 1pm it will say 70%. I use it quite a bit in the mornings but if I restart my phone at that time it will say 90% when it turns back on. I believe the 90% because I rarely make it down to 50% when I plug it in about 11pm. I just can't figure out how to keep the battery at the better percent without restarting out. Any ideas would be appreciated. I am not rooted.
 
Maybe restore to default or something? I'm not sure. That's odd. I've been rooted and ROM'ed for so long now I forgot how to deal with stock ha.
 
Thanks for the reply. I am really trying not to do a restore on my phone again. I hate downloading apps and such all over again. I plan on rooting it and trying the whole different rom game when my contract is up in case I brick it and need to buy a new one haha.
 
I think the thread you were looking for was called something along the lines of "Battery jumps 10-15% on Reboot."

Anyway, this is nothing more than the battery needing to be re-calibrated. (There are 3rd party apps for that.) Even then, you are going to see a jump in the battery reading after a reboot. This is normal in electronics with re-chargeable batteries.

It's from a combination of reasons, from the electrons in the battery getting excited and giving off a false reading due to the load of the reboot, to the phone coming up expecting it at one level and the battery reporting another.

Have you ever had something that said the battery was almost dead, charged it for just a few minutes and the battery read a full charge, only to have it drain within a short time? That's the same thing going on here. Only, those batteries were probably NiCad where we have LiIon (and in some cases LiPo) batteries now.

There is nothing wrong with your phone. No need to reload it. Just re-calibrate your battery and try to only reboot it when you actually have a full charge on the phone.
 
Hey Wolman -

Thanks for the help. I followed some of your other posts and ended up getting the battery monitor widget out of the market. Great tool that seems to be pretty accurate! Thanks again for the help!
 
Hey Wolman -

Thanks for the help. I followed some of your other posts and ended up getting the battery monitor widget out of the market. Great tool that seems to be pretty accurate! Thanks again for the help!
 
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