LYB12AA is a high quality battery from Lucas. The cold cranking current of the battery is 135 A. The dimensions of the product are 134 x 80 x 160 mm. You should use the dimensions of your old battery as a guide for your selection. Reliable wet cell technology for your vehicle The LYB12AA has a capacity of 12 Ah. The higher the value, the more electrical charge can be stored in the battery. Wet batteries like the LYB12AA are conventional flooded types suited for motorcycles. They ensure good starts and may need maintenance. You should consider this when buying Before you buy, check that the circuit and polarity of your new battery are identical to the values of the old model. The circuit shows whether the positive pole is on the right or left of the battery. To determine this, position the battery so that the poles are facing you. With the LYB12AA, the circuit is 1, so the positive pole is on the left.