bobwhite215 wrote:I want to put my AGM battery under the floor of my camper. Was going to build a plywood box to hold it which would be accessible from inside. My question is, what kind of ventilation does the battery need? If I leave an inch or so if clearance all the way around the battery, and drill some holes in the box, will that be enough? Do I even need that? Thanks.
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dmdc411 wrote:If your going to design as a drop in from inside. Why not just put some ventilation holes in. We have 23 fork lifts at work. Granted the batts are not sealed, a bad cell puts off some nasty fumes just walking by! This way your chance of being poisoned by the fumes are minimal.
Andrew Herrick wrote:AGM is also a better battery because it eliminates risk of battery acid spills. Wet-cell lead-acid batteries are cheaper, certainly, but then you have to vent and plan for potential spills. And since hydrogen sulfide (the gas) is lighter than air, you can't just stick some vents in the floor or sidewall and call it good.
H.A. wrote:Andrew Herrick wrote:AGM is also a better battery because it eliminates risk of battery acid spills. Wet-cell lead-acid batteries are cheaper, certainly, but then you have to vent and plan for potential spills. And since hydrogen sulfide (the gas) is lighter than air, you can't just stick some vents in the floor or sidewall and call it good.
To split hairs,
These batteries dont emit hydrogen sulfide, Just hydrogen along with some sulfuric acid vapour.
But either gas is dangerous, they are both very flammable. Hydrogen sulfide is strongly poisonous & corrosive.
Hydrogen will merely suffocate if it displaces enough oxygen.
noseoil wrote:I would build the box, line it & cover it outside with fiberglass & drill some holes for out-gassing. You could even add some tubes (plastic?) to the holes & pot them in epoxy prior to glassing. Drill a hole or two in the back side, so rain isn't driven in on the road. That should work. Make sure to have a gasket to seal the access panel from the inside of the trailer. The holes for the cables could serve as vents as well.
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