Chosen Solution
I have a 2017 iMac Pro (A1862) that mostly works great. But, if I shut it down or lose power for any amount of time, it won’t power up again until I do a “Revive” using Apple Configurator 2. As I understand it, revive resets the firmware on the T2 Security chip. Any ideas why this might be happening? Is there a coin battery inside that (if replaced) might fix this problem? Thanks!
Yep, it sounds like your battery needs replacement. Not sure how easy it is to get to without removing the logic board.
You might be able to get to it via the RAM access door. As to why I’m guessing you have an anti-vampire power strip which is slowly killing your system Standby Power All iMacs leverage a small trickle to hold its settings, even still Mac’s have a backup battery so you don’t loose the settings when moving the system or when you have a power outage. Even still the battery has a life span when you are always using it. The battery has a lifespan of about five years as long as you are still using standby power.
