At 9 pounds, the B129 boasts 813 pulse cranking amps more than any other battery in its weight class. This is the perfect battery for those that need just little bit more power than the B106, but are looking to save every ounce vs. stepping up to a B14115 battery. Most common applications are powersports/motocycle applications. (Note: while high in cranking amps, make sure battery has enough capacity for the vehicle intended to be used in)

Direct Replacement For:

YTX12-BS, YB12B-B2, ETX12

Physical Specs

BCI Group: All Sizes

Width: 3.4" / 86mm

Weight: 9.5lbs / 4.3kg

Height: 5.1" / 0mm

Length: 5.8" / 147mm

Polarity: Left Side Positive

Performance Specs

Voltage: 12

Full Voltage Charge: 13.2

Pulse Cranking Amps (PCA): 813

Amp Hour (AH): 12

Reserve Capacity (RC): > 20 min.

Life Cycle (10%DOD): 2000