G5 sitting idle for a long time

[PeytonM]

Another update. Today, I charged the G5 via the Master. It came up to 100% after 2 hours. I’m still suspicious of the G5: although my serial # is not on the SB, it’s in between numbers on the list.
 

I’ve exchanged emails with Garmin; although responsive, I’m still not convinced there’s unidentified electrical drain when powered off.  After all, I can leave my iPad alone for a month and lose almost nothing. I must be missing something.