Very, very old Jeep Hurricane model. Upgraded to run off my M18 Milwaukee battery. Upgrade cost was around $70.
Amazon parts purchased for conversion:
1. EKYLIN 24v to 12v Converter, Step Down Converter 30A 360W for Heavy Duty Truck Car Power Reducer Converter - 24v to 12v Converter, Step Down... a.co/d/0aMf709N - $27
2. Ancable M18 Power Wheels Adapter for Milwaukee Battery 18V Battery Adapter for DIY - a.co/d/0hxpTTh8 - $10
3. OONO 18V/ 30Amp LVD Low Voltage Disconnect Module - a.co/d/0fBezhrC - $25