Chosen Solution
Hi all. Been working on this MacBook Pro and have com across an issue with the battery. When on cable, the computer runs perfectly well, however if you remove the charger, after a few seconds the computer cuts out. I have noticed that the three ground wires on the battery have melted slightly which I assume means there is a short somewhere. The GPU was recently re-flowed and before that the battery seemed to be fine. Any suggestions where I should start looking?
The OS reports that the battery is fully charged and in working condition.
Clearly there was a short within the logic board likely a shorted out MOSFET. At this point you have issues with both the logic board and your battery needs replacing as well. Its going to take some effort to fix. Which model do you have? If you have a newer Core i7 (2760QM or 2860QM) with AMD Radeon HD 6770M GPU, I would spend the money to fix it as this is a treasure of a system! This is the last 17” model Apple made and is sought after by quite a few types of users.
