Canon EOS-1D Mark III Accessories - Canon Batteries and Power Adapters

Canon LP-E4
Lithium Ion Battery Pack

Canon LC-E4
Dual Battery Charger

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High-capacity Lithium Ion Battery Pack
Designed for exclusive use with the EOS-1D Mark III
3 cells, 11.1V, 2300 mAh
40% less volume than NP-E3 and 46% lighter in weight
Can communicate information with the camera (can be viewed with the Battery info menu): Power source type, remaining capacity 6-level icon, display in 1% increments, shutter count, and recharge performance (3 levels)
Included with EOS-1D Mark III, available as spare/replacement

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Compact charger for EOS 1D Mark III
Can charge two LP-E4 battery packs simultaneously
Takes about 120 minutes to recharge one battery pack
Performs battery capacity calibration with LP-E4 battery pack so that the remaining battery level can be indicated accurately
Compatible with DC power (12V/24V), can be connected to a car battery with Car Battery Cable CB-570 to recharge the battery pack
Included with EOS-1D Mark III, available as spare/replacement

Canon ACK-E4
AC Adapter Kit

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Lets you power the camera from any standard household power outlet
Recommended to power a camera for an extended period of time or when connecting to a computer
Includes: AC adapter, power cord, and DC coupler
The plug at the end of the DC coupler's cord connects to the AC adapter's terminal; prevents accidental disconnection
Included with EOS-1D Mark III, available as spare/replacement