We have had 4 battery's for 5 years now (2-6 volt and 2 12-volt wire together) with no venting what so ever and have never had any issues. The compartments in most if not all campers are FAR from air tight and are self venting IMHO
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2018 Chevy 3500 LTZ Dually Diesel 4x4 CCLB
2011 Montana 3455 SA. 6 point level up. Disc brakes. Curt Q24 Hitch. 5 step glow steps
Progressive EMS. Valterra tank valves. Sailun G637 tires. ARP fridge control. All led lighting. Mor Ryde IS
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