Not the best setup hooking unlike batteries together. If you get a bad cell in one, it will drag everything down. At a minimum I would use an isolator and isolate the two 6s from the 12. Also even tho you have the room, you're adding additional weight to your rig. I would just get two good heavy duty 12s and be done with it.
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2011 Chevy Silverado 3500HD Ext Cab LT DRW Duramax/Allison pulling a 2012 SOB (still Thor, but not a Keystone), Dual ACs, 4 Door Fridge, Fireplace, Sleep Number Bed, Level-Up Auto Levelers, Disc Brakes, Winegard DirecTV SlimLine Auto Dish, Onan 5.5K, Splendide Combo Washer/Dryer, GY G114s on HiSpec 17.5 wheels, TrailAir Tri-Glide Pin Box, Mor/ryde IS.
Michelle & Ann Sullivan and 4 American Shorthairs
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