Can I Use Rich Solar Kit To Maintain Batteries While RV Is In Storage?

Published 07/08/2025

Question:

Can I use this solar kit to maintain my batteries while my RV is in storage?

asked by: Hank

Expert Reply:

Yes! Even the smallest kit like the Rich Solar RV Solar Charging Kit w/ 1 Panel - 100 Watts # RS27VR is perfect for keeping your batteries topped off while your rig is parked.

We had a customer in Utah install it on their horse trailer for about 6 months, even in the winter, and had no issues. The MPPT controller avoids overcharging and works great with AGM or lithium batteries in storage.

Bonus tip: The included tilt brackets can improve winter charging if you’re parked long-term, helping you direct the panel to the sun which sits lower in the winter.

Is your storage area heated? If not, you may want to look into battery heaters during storage. Let me know if you'd like help with that as well.

expert reply by: Andrew N

Hank

7/8/2025

Thanks! I have two 12V batteries wired in parallel, will the 100-watt kit still work for maintaining both, or do I need something larger?

Andrew N.

7/8/2025

@Hank Great question, and yes, a 100-watt kit like # RS27VR can absolutely maintain two 12V batteries wired in parallel, especially if the RV is in storage and you're not actively drawing power. The MPPT controller ensures you're getting efficient charging even in low light or cold conditions. Just make sure the batteries are in good shape before storage (fully charged, water topped off if lead-acid), and disconnect major draws like inverters or alarms if they aren’t needed. If you ever expand your setup or run more electronics, stepping up to the 200-watt kit # RS37VR gives you extra margin. Let me know your battery type and storage location, and I can help double-check sizing.