Is it just the 12 volt battery, or could it be something more?

An inverter for powering miscellaneous stuff, an air compressor, sometimes a fridge on long trips or a heated blanket, etc.

I'm afraid if I asked a Batteries Plus guy to swap out this battery, he'd be in therapy for years.



(It's really not as hard as it looks. I attached 'most everything to the DIN rail, and that just mounts under the hold-down nut. But he'd have to get past that first look.)