Amazon.com: AlveyTech 24 Volt Battery Pack for Razor Dirt Quad (9 Ah, with Harness) - Replacement SLA AGM Deep Cycle Rechargeable set of x2 (12V) Batteries, Electric Power Parts for ATV Bike
MIGHTY MAX BATTERY YTX5L-BS 12V 4AH Battery Replaces ATV Quad Motorcycle Scooter Moped MAX3857456 - The Home Depot