Canon EOS 5D Mark III Instruction Manual (en)

You can check the battery’s condition on the LCD monitor. Each Battery 
Pack LP-E6/LP-E6N has a unique serial number, and you can register 
multiple battery packs to the camera. When you use this feature, you 
can check the registered battery pack’s remaining capacity and 
operation history.
Select [Battery info.].
Under the [53] tab, select [Battery 
], then press <
The battery info screen will appear.
 Checking the Battery Information
Battery model or household power source 
being used.
The battery level icon (p.35) is displayed 
together with the remaining battery capacity 
shown in 1% increments.
Shots taken with the current battery. The 
number is reset when the battery is recharged.
Battery’s recharge performance level is 
displayed in one of three levels.
   (Green): Battery’s recharge performance is fine.
   (Green): Battery’s recharge performance is 
slightly degraded.
Purchasing a new battery is 
Battery position
The use of a genuine Canon Battery Pack LP-E6/LP-E6N is recommended. 
If you use any battery other than the Battery Pack LP-E6/LP-E6N, the 
camera’s full performance may not be attained or malfunction may result.
The shutter count is the number of still photos taken. (Movies are not counted.)
The battery information will also be displayed when a LP-E6/LP-E6N 
battery pack is in the Battery Grip BG-E11. If you use size-AA/LR6 
batteries, only the battery level indicator will be displayed.
If for some reason, communication with the battery is not possible or irregular, 
[Use this battery?] will be displayed. If you select [OK], you can continue 
shooting. However, depending on the battery, the battery info screen may not be 
displayed or may not display battery info correctly.