Marine Battery Group Sizes

Marine battery group size guide

If you run a trolling motor on your boat or any other accessories that need to be powered (stereo, fish finder, etc), you will need a marine battery. While searching for batteries, you will come across the term battery group size. But what are battery group sizes exactly? What is the meaning of Battery Group Size? The term “battery group size” simply refers to the battery’s physical case size. It is a specification that you’ll find on all boat batteries. It is basically the physical measurements of the battery casing as set by the Battery Council International (BCI). The height, …

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