Battery pack for self-installation made up of: 3x 4/5 Sub C cells Brand: For Black Decker Battery Type: NiMH FIT MODEL: For Black & Decker 9078 Type 1 Battery Voltage: 3.6 Volts Capacity: 2000mah/2.0AH Package includes: Battery Pack x1 With connector ,No soldering required ,Easy installation Please confirm your tool model before purchasing, because different models require different specifications of batteries and terminals, if you do not know whether it is compatible or have other doubts, please leave us a message.