Proper battery maintenance and charging is critical for optimum power and longevity. Most RV owners lose battery capacity in the first year and by 2-3 years need new batteries. This is due to sulfation and directly related to proper storage and charging. Learn how to complete a multi-stage charge to break up sulfation and extend the power and life of your batteries. Also, using a device called the Battery Minder can extend the life of your batteries by over 200 cycles.