We switched to the Magnum MS-2812 in the Classic to handle the 600 amp hour lithium battery under the sofa. We currently have 800 watts of solar on the roof and may add another panel or two iff there is space.
In the 23D we switched to the hybrid Magnum MSH-3012 that can draw additional starting power from the 300 amp-hour lithium battery to help the 2,000 watt Honda generator start and run the air conditioner.
Lots of options out there.
WBCCI Life Member 5123, AIR 70341, 4CU, WD9EMC
TV - 2012 Dodge 2500 4x4 Cummins HO, automatic, Centramatics, Kelderman level ride airbag suspension, bed shell
2014 31' Classic model 30 twin beds, 50 amp service, 900 watt solar system, Centramatics, Dill TPMS, disc brakes, 16" tires & wheels