I need some battery education....
Mechanically, I'm always good to go, electrically, not so much. I want to add an additional battery to my camper. It has a deep cycle marine battery now (in a vented battery box). Can I replace it with an AGM and delete the battery box and add another AGM in parallel. I have room for another in a location about 3 feet from the original battery.
I sleep on a CPAP machine at night (running through a xantrex PSW inverter.) It's running on one group 24 battery now and lasts all night but I feel 2 would be better.
I recharge with an inverter genny everyday for 2 hours. Solar don't work, I camp in the woods all the time...
My big question is, does an AGM battery have to be vented to the outside and if so, what type of battery don't have to outside vent? Would be very hard to vent the second battery...
Or should I just upgrade the 24 to a 31?