laptop battery problem

MakePeace

Estimable
Dec 29, 2014
4
0
4,510
laptop powers up with ac adapter(without battery plugged in)but not when battery is plugged in. And the battery wont charge often(sometimes battery charges when kept overnight)
 

MakePeace

Estimable
Dec 29, 2014
4
0
4,510

battery gives a backup of 7-8 hrs when charged.
laptop switches off suddenly when the battery is drained even when plugged in to ac supply
 

MakePeace

Estimable
Dec 29, 2014
4
0
4,510

i updated all my drivers because of that.
the battery charges when laptop is switched off and battery completely drained