With external battery terminals, Minn Kota® Trolling Motor Power Center allows for trolling motor leads and charger leads to be connected without opening the box. This battery box is ideal for small boat, transom applications or for use on boats that do not feature battery compartments. Fits group 24 and 27 batteries. Minn Kota Trolling Motor Power Center - Battries Chrgrs And Accessories at Academy Sports