Are there any big ziplock boxes that can fit the lithium batteries. Thank you for the setup insights.

Those 12v ups batteries go up to 9.6ah in the same size package. The Harley shop has a tube of blue silicone grease you should add to the connections to keep them clean and dry. Very nice work on these btw.

I used a small Plano ammo can. I took it to a Battery Store and chose the biggest battery that would it in it, a 12v 15 ah sealed battery. The width is perfect, and I cut some heavy foam to fill the end gaps, about an inch on one end and two inches on the other. I used another chunk of foam on top of the battery to prevent it moving if the can were tipped over.

I used the same two wire connector, about $2 at O'Reilly auto parts, plus a fuse block. No switches, I just unplug it. I also bought a battery tender brand charger. It has a plug in that accepts different attachments. The O'Reillys two wire connector is a perfect fit and I plug it into the wire coming out of the ammo can to charge the battery.

I'll try to get some pics posted soon.

You guys check out fat fifty steel ammo boxes. You can fit four 9.6ah ups batteries in there and still have room for other stuff or maybe two more batteries. That's 38.4ah easy. Might be a little heavy. Give it a solar panel and you're done.