![]() ![]() It has hinges on one side, and a click-shut latch on the other the lid is fully removable. The box is gray/tan with a green lid, and IIRC, 10gal size. ![]() The batteries fit snugly inside the box and do not have enough space to tip over, or even move sideways much at all. I used a copy of an action packer from Walmart, as the internal size was nearly perfect for fitting 2 golf cart batteries, with almost 1 1/3" clearance above the terminals. I finished this part of my camper project today, so at least the battery box is in, and the batteries installed and connected. There is a drawback if the intake draws air from outside When it's cold out, the vent system will do a nice job of cooling the batteries, which isn't great since batteries don't work as well when they are cold. Personally, I would use an intake vent anyway, and the drain can serve double duty by also being the intake. There also might be some normal battery surface corrosion which you might want to wash off now and again. You'll have to add water to those batteries once in a while, and you might spill some. It'll just rise through the column of air in the hose.sort of like bubbles in a glass of beer rising to the top.Ī drain in the bottom is also a good idea, even if you don't need it as an air intake. So a decent WAG would be about 1 cu.' of hydrogen per hour (of charging) for a pair of 6v 225ah batteries.Ī 2" hose would likely be enough to allow that much to escape - even without a fan or intake duct. Your two 6v golf cart batteries will have a total of 6 cells (so that's 25% of what they used in their example), and also a pair of 6v 225ah batteries rigged in series to get 12v will be a 225ah bank (which is half of the number they used). Their example shows a 24 cell 450ah bank generates about 8 cu.' of hydrogen per hour of charging. They say, "motive power battery" - that's pretty much what a golf cart battery is. There is a formula for figuring out how much hydrogen batteries generate. something with a mechanical clip-on lid, for easier access to the batteries. I think these are intended for marine or exterior mounting, not inside an RV.Īnyone built their own interior battery box for 2 largish batteries, with a vent to the exterior? My thought is to use a sturdy plastic storage box from Target, Home Depot, etc. The only retail vented boxes I've found that are large enough to hold two golf cart batteries are overpriced, at $80-90ish, and don't have a vented hose out the top. To go from the single battery to a 2-battery 6V system, I either need to use two of these vented boxes, or one bigger box. I have enough cabinet space to fit two large batteries, easily. It has a screw-on lid, which is an annoyance when I want to open that box and directly connect a battery charger. The battery box has a drain hole through the floor, plus the flex hose vent out the top, which leads to an exterior vent on the camper. The 12V battery is inside a cabinet inside the camper, and vented to the exterior in a box like this one: I'm going to install two 6V golf cart batteries in my truck camper, as the 12V battery it came with is marginal. ![]()
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