Canon EOS R5 C VR Creator Kit with RF 5.2mm f/2.8 Dual Fisheye Lens - Manual (Page 24)

Lens
After detaching the lens from the camera, put down the lens with the rear end up and
attach the rear lens cap to avoid scratching the lens surface and electrical contacts
(1).
Smudges on the image sensor
Besides dust entering the camera from outside, in rare cases, lubricant from the camera's
internal parts may adhere to the front of the sensor. If smudges are visible on images, have
the sensor cleaned by a nearest Canon Service Center.
Battery
Tips for using the battery and charger
Store in a cool, dry, well-ventilated location.
When storing the battery for extended periods, charge it about once a year.
When charging the battery, aim to charge it to approx. 50% instead of fully charging it
(
).
At room temperature (23°C/73°F), it takes approx. 60 min. to charge a depleted battery
to about approx. 50%. Battery charging time varies greatly depending on ambient
temperature.
If the battery is not used for an extended period, the trace amount of current that
continues to flow inside the battery when it is removed from the camera may eventually
lead to over-discharge and prevent further use, even after charging.
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