Hi Everyone. New to this forum. I bought a new KZ Durango Gold G382MBF fifth wheel last year, 2025 year model. It came with a solar package that has 2x 200watt solar panels, a 30A MPPT solar charge controller and a 2000 watt sine wave inverter. To be honest, I don't really know what any of that means, just sharing what the brochure said explaining the solar system that came with the trailer. My question is about upgrading the 2 batteries that came with it. I have run out of battery before...