ET550 is a high quality battery from Exide. The cold cranking current of the battery is 600 A. The dimensions of the product are 278 x 175 x 190 mm. You should use the dimensions of your old battery as a guide for your selection. Durable Wet technology for your vehicle The ET550 has a capacity of 80 Ah. The higher the value, the more electrical charge can be stored in the battery. Wet batteries like the ET550 are suitable for marine equipment with everyday energy needs. They offer reliable performance for leisure use. The technology of this battery supports power requirements in marine leisure 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 ET550, the circuit is 0, so the positive pole is on the right.