NoMEM Li-Ion is the newest frontier in battery technology for power-hungry digital and high performance LCD type camcorders requiring a specially designed Lithium-Ion battery pack. It has the longest performance with no memory effect, highest quality Japanese made, original manufacturer approved protective circuit and it is 100% compatible with original equipment chargers. Features: Replaces CANON NP-E3 For EOS-1D EOS-1D Mark II EOS-1D Mark II N EOS-1Ds EOS-1Ds Mark II
12 V DC1800 mAh3 Year Canon SLR Camera Systems: EOS-1D EOS-1Ds EOS-1D Mark IICamera BatteryChinaDMCE3LenmarLenmar Enterprises, IncNickel Metal Hydride (NiMH)NoMEM Nickel-Metal Hydride BatteryYeshttp://www.lenmar.com