PulseTech PP-36-L 36-Volt PowerPulse Battery Conditioner Ensures peak battery performance by eliminating the main cause of lead-acid battery problems. Works on all lead-acid batteries including gel cell, antimony, hybrid, calcium plate designs. Increases battery life span up to three times longer - 5 year limited warranty Provides greater charge acceptance so batteries recharge faster and with better quality. Helps prevent sulfation buildup - the main cause of battery failure