*note* A123 packs MUST be charged and balanced on equipment approved for A123 cells A123 4s1p (4 Cell) 13.2v 2300mAh battery pack in flat configuration. Discharge up to 60C (138A) All packs come with taps pre-installed. Choose your preferred Tap style below Main Lead Connector: Choose your preferred option below. Weight Approx. 280g / 9.87oz