How do I change the batteries?
Turn the CS-22000 on its side.
Take your left hand and hold the back plate – Take your right hand and hold the body

Turn the body plate counter clockwise, twist until the back plate comes off.
Replace the batteries
Make sure the both LI-2032 batteries have the positive side facing up (towards the back plate)

Replace the back plate. Please be careful to make sure the back plate catches the threads so it screws on easily. Turn until snug. Please do not over-tighten.