I change to TWO Full River AGM 6 volts when my TWO OEM 12 v Harris batt. took a crapper at 11 mo old.
I Love them.
I told Battery Depot I needed a discount and they gave me like 11 % off just for asking! But I still paid like $220 each. They should last longer and the reserve power is awesome. I think its the way to go.
Do your research. The 6 volt lead acid battiery are taller (from what I researched) than AGMs overall - so I had to go with AGM to fit under my steps.
2017 Axis / 25.4: Big Foot Levelers, Aims 1200 Watt inverter, Ceramic Window Tint, Full River AGM 6V batteries, Front Hellwig Sway bar / Rear Track Arm, Safe T Plus Steering Stabilizer, PD 4655 converter, Hard Wired Surge Guard, WEboost + WiFi Ranger, LED Headlights/Driving lights, Fresh water surge tank, Black Tank Tornado flush, 4999 zip ties.