Strange battery behavior

[bigcomp]

Battery appears to be fully charged when connected to AC supply but as soon as the AC supply is removed it suddenly drops down to 90% and from there everything is normal. I've seen stuff similar to that, but this one doesnt seems to be very normal.

 

[DMGrier]

How old is the laptop and do you normally let it drop to 5% then charge it to 100% most of the time?

 

[bigcomp]

Fixed .. I removed the battery, uninstalled it, placed it again, let it reinstall by itself and now its working fine. Souds like a problem with OS drivers or it can be hardware because I was charging it before on a UPS ( uninterrupted power supply )?

 

[DaveSi677]

I don't understand the hole let it reinstall itself? A battery doesn't reinstall any drivers to my knowledge??? ...