AJC® replacement compatible with Costway Mercedes Benz Electric Kids 12V 5Ah Ride-On Toy Battery. Exact OEM replacement guaranteed to fit easily and precisely. Maintenance free AGM technology, no need to add acid or water ever. IMPORTANT: You MUST RE-USE: your existing cabling and hardware. These are replacement batteries only. NOTE: It is your responsibility to verify the batteries being ordered match the batteries in your unit prior to placing your order. We are not responsible for incorrect orders.