B39 is a high quality battery from VARTA. The cold cranking current of the battery is 300 A. The dimensions of the product are 210 x 175 x 175 mm. You should use the dimensions of your old battery as a guide for your selection. Durable Wet technology for your vehicle The B39 has a capacity of 45 Ah. The higher the value, the more electrical charge can be stored in the battery. Wet batteries like the B39 are suitable for agri and construction vehicles with everyday energy needs. They offer reliable performance for heavy duty use. The technology of this battery supports starting and power requirements in agri and construction applications. 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 B39, the circuit is 0, so the positive pole is on the right.