LS249 is a high quality battery from Lucas. The cold cranking current of the battery is 800 A. The dimensions of the product are 302 x 175 x 220 mm. You should use the dimensions of your old battery as a guide for your selection. Durable EFB technology for your vehicle The LS249 has a capacity of 100 Ah. The higher the value, the more electrical charge can be stored in the battery. EFB batteries like the LS249 are suitable for vehicles with high energy requirements. They have a long cyclic life. The technology of this battery covers the high energy requirements of cars with start-stop 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 LS249, the circuit is 0, so the positive pole is on the right.