Get Home Bag vs. BOB carry pretty big differences in the assumptions which forces major differences in contents.

My car-carried Get Home Bag assumes an EMP has killed my car, everyone else's cars and all electronics. So the only electric stuff in my GHB is a flashlight. (EMP won't kill flashlights or batteries) It's basically austere camping equipment for a couple of long days of walking.

Your scenario of primary concern might be different.