Nickel cadmium (NiCD)
From The Glossary of Digital Photography
Also abbreviated as NiCad. A type of rechargeable battery. Nickel cadmium is an especially useful rechargeable battery in high-current draw situations and is often used in camera flash units. These batteries have a lower voltage (1.2 volts) than normal batteries (1.5 volts), so the device must be designed to accommodate the lower voltage.
