This is a four year old MacBook Pro after all. The computer works fine again after plugging it in. Basically the battery holds charge but upon waking the MacBook Pro screen will just do dark. I’m kind of expecting at the Genius Bar diagnostics reveal something more heinous is afoot. Otherwise I’d just DIY the battery replacement, but that’s not very Apple anymore I guess. It’s a 70+ step process to replace the battery so I’m opting to go pay the Apple store to fix it for $129. This mid-2015 MacBook Pro has been a workhorse for me but it’s time may be up! The battery service indicator appeared which means it could be pretty bad I’m thinking.