M12 B4，M12 B6，M12 XC 5.0，M12B2，M12B4，M12B6. For Milwaukee 48-11-2401，48-11-2402，48-11-2411，48-11-2412，48-11-2440，. do not put the battery into water and fire. This product has a 5 years warranty. keep away from children.
eBay