Battery Family: Maintenance Free Battery Type: YTX9-BS Voltage: 12 Capacity: 8 Dimensions: 6" x 3.4375" x 4.1875" Weight: 5.4 lbs. Metric Dimensions: 150mm x 87mm x 105mm Metric Weight: 2.5 kg Polarity: Acid Volume: 0.4 Amps: 0.9 C.C.A.: 120 Battery Family: Maintenance Free Battery Type: YT12A-BS Voltage: 12 Capacity: 9.5 Dimensions: 6" x 3.4375" x 4.1875" Weight: 6.3 lbs. Metric Dimensions: 150mm x 87mm x 105mm Metric Weight: 2.8 kg Polarity: Acid Volume: 0.5 Amps: 1 C.C.A.: 175