WASHINGTON — We’ve done a lot of work on the electrical systems in our camper-van, Lance. Our house battery is a large lithium-ion battery, and we’ve got 300 watts of solar, an inverter/charger, and a supplemental alternator to keep it charged up. With those working for us, on most days, I don’t even think about the state of charge of our house battery. But as much as all of that does for the house battery… it does nothing to keep the chassis battery charged up. That’s the battery that starts the engine!
During times when we’ve stored Lance, I’ve noticed the chassis battery being drawn down by parasitic loads. This is largely due to accessories that we’ve installed, so I know what’s causing it. But I still needed a way to overcome those loads and keep the chassis battery charged up when we have the rig stored.
Read the full story from The Fit RV.