I knew in my gut that the front batteries were probably leaking like the rear ones were. Last weekend, I finally got around to removing the front battery box so I could see how bad it was. Pretty bad:
The front box is a pain to remove because of all the relays, batteries, DC-DC converter, etc. that are attached to it. You can see all the little green masking tape labels I put on all the wires to make sure I got things put back together correctly.
Here is the front compartment after attacking it with a wire wheel on my angle grinder:
It was warm enough that day to put a couple of coats of spray paint on it, so I did:
I went to Sam's Club and got 4 12-pound bags of baking soda. I put about 6 pounds below the front rack (looks like snow!):
I put about 1/4" or so inside the front battery box:
For good measure, I put some below the middle battery box (not shown) and inside the middle battery box (that's the ElectroJeep in the background - sealed batteries, no acid leaks there...):
Hopefully the baking soda will neutralize the acid spills as they happen. But this is something I will have to check every several months.