Exide Mileage FML6- MLDIN78LMFEFB (78Ah) Car battery Exchange with Old Battery ONLY Bangelore Exide Mileage MLDIN 78LMFEFB (78Ah) You can look in the battery section of the Owner's Manual of the car or truck. If the owner's manual can't be found, look at your existing battery and see what BCI Group Size is already installed. The Group Size is labeled in several places on the battery. Generally on the top and/or on the front of the battery 30 Months Free Warranty 30 Months Pro Rata Warranty