BATTERY PACK

A battery is provided including a printed circuit board (PCB) having an array of PCB slots extending from a first side of the PCB to a second side of the PCB, the array of PCB slots having first and second column of PCB slots generally parallel to and adjacent to each other, the PCB slots of the first column being offset from the PCB slots of the second column. The first column of PCB slots has at least first PCB second PCB slots and the second column of PCB slots has at least first and second PCB slots. A distance between the first PCB slot of the first column and a second PCB slot of the first column is greater than a distance between the first PCB slot of the second column and the second PCB slot of the second column.