Circuit Path From Battery. Any Fuses?

I am working on a June 09 13 inch macbook pro.

It had a small liquid spill on the top, left, cpu side of the logic board.

After cleaning up and reassembling the unit everything works fine….

Except one thing. It won't run off the battery anymore.

On AC the charging system works correctly and charges the battery to full then quits charging ok.

The battery indicator lights on the side works correctly.

However it won't start or run on the fully charged battery AND the known fully charged battery shows no reading on the lights on the side without being plugged into the AC.

So I am trying to locate specific locations to check on the board to account for no startup from the battery.

It is not a connector issue. I have voltage off of the battery connector to the board then I'm loosing it somewhere.

Any help would be appreciated.

Thanks