The S12-135LFP is a high quality battery from Rolls. The dimensions of the product are 332 x 171 x 227 mm. You should use the dimensions of your old battery as a guide for your selection.Durable LiFePO4 technology for your vehicleThe S12-135LFP has a capacity of 135 Ah. The higher the value, the more electrical charge can be stored in the battery.LiFePO4 batteries like the S12-135LFP are suitable for deep cycle solar or off-grid applications. They offer high safety, long cycle life, and fast charging.You should consider this when buyingBefore 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 S12-135LFP, the circuit is N/A.