Chosen Solution
I just installed the a second replacement battery in my MacBook Pro. After fully charging the battery and disconnecting the power adapter, the MacBook just dies after taxing the computer a little bit like scrolling through pictures in Aperture of Photos. The computer has recently undergone a major repair after sitting in a drawer for over a year. I removed the mother board and applied heat to the GPU and CPU, reassembled the computer and it booted. The original battery, however, would not take a charge. I’m wondering if I would have better luck with a better battery or could there be another problem with the computer? The battery I installed is a relatively cheap after market battery manufactured by Cameron Sino. Will I have better luck with a Ifixit battery? Update (04/12/2019)
I just removed the magsafe charger and went to markup a photo I took of the motherboard. During this process the computer died.
In the photo of the motherboard the component with a red rectangle fell off while I heated with a heat gun. I got it back on with the heat gun. I am wondering if this could be the problem. I am not sure what the component does. I used a thermometer and kept the temperature under 230 degrees celsius. Another issue I had after initially putting the computer back together was the wires to the magsafe female end in the computer got squeezed and the computer was not getting power. I discovered this issue loosened the screw and freed the wires and it booted but the 8 year old battery that hadn’t been used in over a year would not charge. I do not know how to read schematics and board views. I do not have any tools for working on logic boards. How will I see if the battery is delivering enough power?
Applying heat to a faulty GPU isn’t a repair, it’s mainly a temporary fix . It may well be a GPU related behavior that happens when Mac switches to dedicated graphics. I would recommend downloading and running Valley from Unigine to verify if the GPU is really working before concentrating on battery. Take also into account that depending on the intensity and time heat was applied secondary damages such as components burning and shorts to ground may happen.
