 "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 LC-E6 - battery charger" " Canon charger 3348B001 Digital Camera Accessories CDW.com
"The LC-E6 battery charger is designed for use with the Canon camera. This unit can be used to charge a battery from a standard electrical outlet." 