ER350 is a high quality battery from Exide. The cold cranking current of the battery is 510 A. The dimensions of the product are 270 x 173 x 222 mm. You should use the dimensions of your old battery as a guide for your selection. Durable Flooded technology for your vehicle The ER350 has a capacity of 80 Ah. The higher the value, the more electrical charge can be stored in the battery. Flooded batteries like the ER350 are suitable for marine dual use with standard energy needs. They offer reliable performance for marine applications. The technology of this battery supports dual starting and supply requirements in marine environments. 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 ER350, the circuit is 1, so the positive pole is on the left.