 "Canon LP-E4N - camera battery Li-Ion" " Canon Li-Ion 5751B002 Digital Camera Batteries CDW.com
"The LP-E4N battery pack is a rechargeable Lithium-ion battery. The battery pack also communicates with these cameras so that you can check the remaining charge, shutter count, and recharge performance in the camera's power source info screen." 
 "Canon BG-E14 Battery Grip (Canon EOS 70D)"@en Aden Camera "@en Digital Cameras Toronto Canada Store " Canon 70D) | SLR
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                        The Canon BG-E14 Battery Grip is compatible with the Canon EOS 70D DSLR Camera and provides improved handling, versatile control, and extended battery life when in use. It accepts up to two LP-E6 lithium-ion battery packs to effectively double the camera's battery life. Six AA batteries can also be used as well as the optional ACK-E6 AC Adapter Kit for continuous power.
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