RXM1020 Features: * Battery * No memory so it can be re-charged at any time * Provides consistent, even power flow throughout the cycle * Can be re-charged over 500 times during its life cycle * Easy to read power level indicator on the battery eliminates the guessing of how much charge is in the battery * Battery pack weighs just 12 pounds * Providing years of dependable use * Easy to remove for off season storage * 12 lbs Specifications: * 36 Volt lithium replacement battery for PMLI-20 Dimensions: * Overall dimensions: 5" H x 11" W x 20" D