New battery box and portable solar setup
This modification may be of interest to those without the storage box or solar options. I replaced the factory battery box with a small tongue box that has space for two batteries (maybe in the future for us) or one battery and a bit of gear.
On the top of the box I mounted a 25W solar panel, and on the side I mounted a control, a zamp solar port for our portable panels, and a 12V outlet.
The control is a Renogy Voyager which I chose mainly because it has an IP65 (suitably waterproof) enclosure and it's cost effective.
I got the box from etrailer.com for less than $100 USD but prices seem to fluctuate a lot on that site - currently the price is quite a bit higher. The box weighs only about 20 lbs, which was important to me but the metal is consequently somewhat thin.
I was originally going to make a plywood floor with a cutout to hold the battery in place but then I would have had to figure out a secure way to cover the battery terminals so I decided that for now it was easier to simply mount the plastic battery holder in the new box.
The way our trailer is parked, the little panel does get some direct sun in the afternoons so it should do a good job keeping the battery topped up by itself.
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