CT40 and CT40 XP battery pack (replacing 318-055-015), 4020 mAh, for use with CT40 or CT40 XP configurations with metal battery latch button (last two digits in part number begin with A or B: CT40x...
CT40 battery pack, 4020 mAh, for use with CT40 configurations with plastic battery latch button (last two digits in part number begin with 0: CT40-L*N-xxxxx0x).