It is recommended to inspect your riflescope before each use. Check the following:
The device should be free of any cracks or deformations.
The lenses of the eyepiece and objectives should be free of cracks, grease, dirt or debris.
The state of rechargeable batteries (should be fully charged). Electrical sockets should be free of salts, oxidation, or other debris.
from Yukon Group 2023