The Bosch BAT414-2PK features two 12V Max Lithium-ion batteries that each use advanced technology for optimum battery life, runtime and power in a compact package. With 50% longer runtime than previous generations, this battery weighs 0.3 Lbs. and delivers abundant power. Bosch’s easy-to-use 12V Max cylinder design is the choice for pros maneuvering in tight spaces. . Working in cold conditions is no issue with this Bosch battery, which features cold-weather performance up to -4° F. The battery offers compatibility with Bosch 12V Max cordless power tools and chargers. It features Electronic Cell Protection to help guard against overheating, overload and unnecessary discharge.