December 19, 2025: I wrote this post twelve years ago. The subject matter pertains to lead-acid deep cycle batteries. Today Lithium (LiFePo4) deep cycle batteries have become very popular. If you have a LiFePo4 battery, this pos, Upgrading an RV Battery Bank with Lithium (LiFePo4) Batteries may be of interest to you as it contains may facts … Continue reading State of Charge: Your Camper/RV May Be Killing Your Battery Bank