[SOLVED]820-2914 battery problem

[Bohmmen]

This board had some water damage but not really nothing visable. But I had to replace the connector for the touchpad on the board because it was corroded.
The problem is the battery. It boots with only battery connected but after 30-60 sec it turns off. If I unplug MagSafe when the computer is running it runs from the battery for 30-60 sec and then it turns off.
The battery is charging and there is no X on the battery icon in OS x

 

[dukefawks]

Percentage going up when charging, BIL working? Seems like just a dead battery to me.

 

[Bohmmen]

BIL is not working. Battery was 80% and when I remien MagSafe it was 86%. Original battery with 176 cykles. I don't have any other battery for this model.

 

[Bohmmen]

Sorry. BIL works but only when MagSafe is connected

 

[dukefawks]

Still sounds like the battery to me. You can test with a 13" or 15" battery as I believe they are the same 10.8/10.95V but double check the voltage.

 

[Bohmmen]

Tried a new battery but no difference.
It sometimes worked for 15 min running from only battery.
But now i found liquid damage around U6990, some bad traces. Replaced a couple of components and now it works!!