I still use a 2010 MBP. I think it's at the end of MacOS X support. The battery doesn't last long. Rather than spend money buying a new battery, I should probab

I still use a 2010 MBP. I think it's at the end of MacOS X support. The battery doesn't last long. Rather than spend money buying a new battery, I should probably replace the whole laptop. But it still works!