mechanics. The motorcycle’s battery contains four cell boxes. To link all the cell boxes they install two interconnect boards … then into each board they plug the connectors from two cell boxes. They use lots of grease to waterproof the battery and protect it against corrosion caused by road salt or sea air. Next they plug wires coming from the two interconnect boards into a circuit board. This circuit board is the battery’s brain. It regulates the voltages of the individual cells to prevent over-heating. Then the charging components.