Plunger

Note: Remove the plunger gently from the wall before changing the battery.

1
one

To remove the blue lid, squeeze, twist, and pull it off.

2
two

Locate the battery.

3
three

Gently slide out the battery. You may use a flathead screwdriver if this proves difficult.

4
four

Note the battery terminals (+, -).

5
five

Place a new battery in the device (CR1620).

6
six

Replace the lid on the device, making sure that it is seated in all the way.