2-Pack Replacement 2004 Yamaha YW50A Zuma 50CC Factory Activated, Maintenance Free, Scooter Battery - 12V, 4Ah, UB-YTX5L-BS Replacement Battery for 2004 Yamaha YW50A Zuma 50CC; Quantity: 2 Batteries Factory Activated, Maintenance Free, Sealed Lead Acid Battery Ready to install. No need to add acid. Leak free, sealed design prevents corrosion. One Year Warranty, Voltage: 12V, Capacity: 4Ah UpStart Battery Brand. On Sale for a Limited Time!