Garret Towne November 2, 2016 5th Wheel, Example Projects 10/28/16 – 2015 Keystone Montana, 35.5’ Garret Towne November 2, 2016 5th Wheel, Example Projects This is one of our most powerful non-lithium systems. Features include: 1600W of solar charging, going through 100A MPPT charge controller, to a 900Ah AGM battery bank which feeds a 3000VA hybrid inverter. It’s another AM Solar mobile power plant.