Lenco CR-2003 - Manual (Page 8)

Remember to pull out the
clear plastic tab from the
battery compartment before
using the remote.
To remove the battery from
the remote, use your thumb
to pull out the battery tray.
Replace it with a CR2025
type 3V battery, taking care
to insert it with the positive
(+) side up.
Caution: Risk of
explosion of battery is
replaced by an incorrect
type.
Dispose of used batteries
according to the instructions
8