EZ850 is a high quality battery from Exide. The cold cranking current of the battery is 900 A. The dimensions of the product are 353 x 175 x 190 mm. You should use the dimensions of your old battery as a guide for your selection. Durable EFB technology for your vehicle The EZ850 has a capacity of 100 Ah. The higher the value, the more electrical charge can be stored in the battery. EFB batteries like the EZ850 are suitable for marine dual use with high energy requirements. They have a long cyclic life. The technology of this battery covers the dual starting and supply requirements of marine systems. 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 EZ850, the circuit is 0, so the positive pole is on the right.