I replaced the Ford engine battery with a pair of Lifeline GPL-24Ts it gives better cranking power, and runs the hydraulic jacks, and other loads with ease. They work well with the 4 Lifeline L16s (800AHs) house battery bank. Their battery characteristics and charging are similar and the solar and/or Magnum MS 2812 inverter charger keeps both banks fully charged. Also, no corrosion and need to add water to the batteries.
2012 Bay Star 2901, 2 ACs, 5.5KW Onan, 765W solar & Outback FM-60, 800 AH Lifeline AGMs & Magnum MS2812 + AGS + BMK, Koni FSDs, Safe-T-Plus, Super Steer Rear Track Bar, MCD Duo shades w/powered cockpit, remodeled galley, Sumo springs and 2008 Tacoma 4x4 toad.