Amazon.com: Beiter DC Power High Performance Rechargeable 24 Volt (2 12V Batteries) Battery Pack for The Razor E300 & Razor E325, W15130640003, W13112430003, W13112430185, W15130412003 : Beauty & Personal Care
24V 12Ah UPS Lithium Battery ( 2 x 12V 7Ah Lead Acid Replacement battery) - Red Pole Energy