Yuasa Sealed Lead Acid REC36-12, 12v 36Ah Electric Golf Trolley Battery Fits Powakaddy Golf Caddy's Wheelchairs, and Electric Vehicles. It will work on almost any electric golf trolley including Powakaddy, Motocaddy, Fraser and any other electric golf trolley that uses a 12 volt system, as long as your battery box is large enough to accommodate this battery.
eBay