We have a solar panel on the roof, a Furrion MPPT controller in the pass-through, and two LiFePO4 batteries on the tongue. The controller can be set for three different types of batteries, including Lithium. Each morning I go out to check the propane and set the solar controller to Lithium. Isn't it supposed to stay where it is set?

Most likely this fall or winter I'm going to add additional solar panels and batteries. I'm guessing that I'll probably need to upgrade the controller at that time, too. Maybe the new one will either be Li only or stay where it is set.