Amazon.com: 24-Volt Battery Pack for The Razor Crazy Cart E100, E100 Glow, E125 Scooter High Performance and Rechargeable W13110050003 (This will not fit the Crazy Cart Shift or the E100 Power Core)
12V 35AH INT Replacement Battery for Razor Crazy Cart XL - 2 Pack - Walmart.com
AlveyTech 36 Volt Battery Pack for the Razor Crazy Cart XL (12 Ah, With Wiring Harness) - Walmart.com
Razor Crazy Cart battery upgrade: from Pb to Li-ion power tool battery - YouTube