CANON 1DS MARK III/MK IV BATT LP-E4
• This Canon rechargeable battery pack LP-E4 is designed for exclusive use with the EOS-1D Mark III digital camera. It has a rated voltage of 12V and a rated capacity of 2,300mAh, higher than the previous NP-E2.
It can be recharged using the LC-E4 charger, and recharges in about 120 minutes. The seams that come into contact with camera are lined with silicon rubber packing to enhance water and dust resistance.