ET650 is a high quality battery from Exide. The cold cranking current of the battery is 800 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 Wet technology for your vehicle The ET650 has a capacity of 100 Ah. The higher the value, the more electrical charge can be stored in the battery. Wet batteries like the ET650 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 ET650, the circuit is 0, so the positive pole is on the right.