EV 12V20AH Maintenance Free Rechargeable Battery For Electric Scooter/Electric Bike Product Overview 6-DZM-20 is a heavy-duty valve-regulated deep cycle lead-acid battery designed for light electric vehicles and industrial cleaning equipment. Rated 12V 20Ah (2hr rate), this EV series battery adopts enhanced deep-cycle paste formula to handle frequent charge-discharge cycles. Its fully sealed spill-proof structure delivers steady, long-lasting power for mobility devices,