What do battery group sizes mean

BCI have defined Group Numbers to categorize differences between various batteries. The grouping is based on the physical dimension of a battery to best fit your vehicles. It has nothing to do with the capacity of the batteries. Generally automotive manufacturing companies provide a limited amount of space in the engine compartment to place a battery. You will get exact group number of battery.

First way to determine battery group size is to look for specifications in the vehicle manual. Battery specifications are generally present in the manual and are easy to get. Below, you can get to know some of the other factors aside from the size of the cell that can secure the performance of your vehicle—including your car and even on other applications.

Hopefully, this information sheds some light on battery group sizes as well as the other factors that contribute to battery performance. The battery group size of both a group 27 battery can differ depending on manufacturing processes—not just in dimension either, but considerably also in performance markers like CCA or the RC. But, if we are to answer based on dimensions, will arguably not be so different unless you are going for a leap in size like a group 31 size battery.

These numbers will usually be the same throughout the spectrum of group 27 batteries from all-around battery brands—with some exceptions, including. But, remember, unlike dimensions, the markers of their RC and CCA can be considerably different from brand to brand. For a car battery, it is recommendable to get a starting purpose battery with an AGM type of battery cell. You may have to find the CCA through another method. Step 2: Check your manual.

Step 3: Find a battery with a high rating. If you live in a cold climate with several months well below the freezing point, you may want to look for a battery with a higher CCA rating for easier cold-weather starts.

Likewise, If you live in a hot climate with several months well above degrees point, you may want to look for a battery with a higher CCA rating for easier. Skip to content. Battery Group Size.