Amazon.com: Power Queen 12.8V 12Ah Lithium Iron Phosphate LiFePO4 Battery, IP65 Protection Class, Deep Cycle Battery with Built-in 12A BMS&2000+ Long Cycle Life Perfect for Kid Scooters, Power Tools, Marine Boats :
Amazon.com: 12V 12Ah Battery for Peg Perego Polaris Polaris RZR 900 Slingshot Gator XUV Gaucho Rock'in Children Ride On Car : Automotive