safeamp wire harness connector for fisher-price power wheels 12-volt sla battery safeamp the connector is 100% compatible with all power wheels 12-volt ride-on toys from fisher-price. use it to connect a standard 12-volt sla battery to your power wheels vehicle. a 30-amp fuse is installed on the harness and it is replaceable. please note that this product is manufactured by safeamp. this product is not manufactured or distributed by fisher-price, owner of the power wheels trademark.