tensch
New member
We are taking delivery of a new 2024 Grand Design XLS 22MLE next week. It has the 12v refrigerator which concerns me for the times we dry camp (maybe 20% of the time for 3 or 4 days max). The trailer comes with a 165watt solar panel and MPPT controller. I plan to either transfer 2 newer 6volt batteries from our old trailer, or bite the bullet and buy a new 200Ah (or 230Ah?) lithium. We are very conservative with our power usage when dry camping....no inverter, no tv...just refrigerator, lights, water pump, etc. I can add a 165w panel on the roof, but am thinking I'd rather get a Renogy 200watt suitcase so i can move it around as necessary? It would have its own separate controller. My questions....Would this set up take care of my needs? The suitcase panels i see come with PWM controller, should I upgrade to another MPPT or will the one MPPT and the PWM work ok together? And finally, is there any difference or advantages to getting one 200Ah lithium battery compared to two 100Ah batteries? This is an amazing forum and thanks for any advice!