Exide batteries come in various group sizes such as 24, 25, 47, 48 and 91, as of 2015 according to Battery Council International. Battery group sizes vary depending on the intended battery application such as use in trucks, farm equipment or motorcycles.
Typical Exide battery sizes for farm equipment include the 30H, 4DLT, 31T, 24F and 8D group sizes. Battery Council International instituted the use of group numbers to mark the overall dimensions of batteries in length, width and height. For instance, size 24 batteries measure 10 5/8 by 6 3/4 by 9 1/8 inches, while size 59 batteries measure 10 1/16 by 7 11/16 by 7 3/4 inches. However, battery group sizes do not translate directly to battery power ratings or reserve capacities.
The Exide Global and Nascar Extreme batteries are suitable for 90 percent of all American-made or imported cars and light trucks. Typical Exide group numbers for these vehicles include 71, 73, 74, 75 and 78. Asian-made vehicles mostly require Exide batteries of group sizes 24, 25, 27, 35 and 51, while European vehicles require battery group sizes 47, 48, 49, 91 and 94. Using the right battery group size ensures that the battery fits securely in its tray, thus preventing short circuits.