PulseTech SP-24PSC - Solar 24-Volt Battery Charger Desulfator The SP-24PSC 6 3-Watt Pulse Solar Charger charges and desulfates all types of 24-Volt lead-acid battery systems (VRLA, AGM and flooded cell) Designed for use on vehicles and equipment left outside for long periods of time, this solar charger is completely safe and can be left on indefinitely Patented Pulse Technology removes damaging sulfates from the battery plates to maintain batteries at peak condition and extend battery life