Genuine Beiter DC Power Battery – One of the Most Trusted and Highest Reviewed Sealed Lead Acid Batteries on Amazon This listing does not fit the Razor Ecosmart Metro HD. The HD Requires a 12V6ah Ease Of Mind -All Our Batteries Are MAINTENANCE FREE and VALVE REGULATED RUGGED CONSTRUCTION - The High Impact Resistant Battery Case Is Made Up of a Non-Conductive ABS Plastic. This Material Has a Strong Resistance to Shock, Vibration, Chemicals and Heat. A Very Fine Fiberglass Mat. This Along with The Valve Regulated, Spill-Proof Design of Our Batteries Allows Trouble-Free, Safe Operation in Any Orientation