Wireless doorbells perform much the same as a regular doorbell, but no hard wiring is necessary. A remote button is mounted to the outside of the home in the desired location, usually next to a door. When the remote button is pressed, radio signals are transmitted to the chime which is mounted inside the home where it can be conveniently heard. Although wireless doorbells are easy to install and use, according to the Ace Wireless Doorbell guide, the batteries in the remote button and the chime case will need to be replaced every year.
Open the chime case by pushing in on the catch at the bottom of the case. Set the top cover aside and remove the old batteries from the unit by prying them out with your fingers.
Install the new batteries into the chime case, making sure to install them in the correct orientation, as indicated on the battery diagram embossed on the inside of the case.
Push the cover back into position until it snaps into place.
Replace the battery in the remote button transmitter by removing the cover. Insert a flat-blade screwdriver into the slot on the end of the case and rotate it to loosen the cover. Remove the cover and set it aside.
Remove the battery by prying it up with your fingers. Install the new battery in the same orientation as the old one. Check the battery diagram inside the cover or check the instruction manual if you are not sure.
Press the transmitter cover back into place until it snaps.
The chime case and the remote button transmitter use different batteries. Remove the old batteries and take them with you when purchasing replacements to ensure you get the correct ones.