I'm considering the option of building my own
battery box vented outside. There are a couple versions of this available online, but once you add shipping to Canada you are looking at $100 each. $200 for two
battery boxes seems a little outrageous. Most basic boxes are designed to go in an outdoor location, but with my present configuration I don't have space or tongue
weight allowance to do that anymore.
My thinking is that I can buy a basic plastic bin of correct size. I can then put a vent out the top with basic plastic tubing. There is some concern with
battery acid eating the bottom of the box. I can solve that by buying two battery trays and placing those in the box.
Alternatively I could make the box with plywood and seal it up with a coating of
fiberglass resin.
The other alternative of course is one of the sealed battery types (agm or similar). The box is probably most economical in the longer term.
Thoughts anyone?