How to Change the Batteries on an ADT Wireless Smoke Detector

An ADT-brand wireless smoke detector functions independently to detect smoke that might be dangerous to the inhabitants of a home. The smoke detector communicates with the rest of the wireless alarm system using a built-in wireless network that doesn't rely on a computer. The detector has batteries to power it in case an electrical power failure in the house occurs, but it is vulnerable to working erratically should the batteries run low on power. Changing the batteries in the smoke detector will keep it functioning optimally.

Ladder
Compressed air
Replacement 9-volt battery

Instructions

- 1
  Enter the password on the keypad attached to the ADT-brand wireless control panel. Press the "On/Off" button on the keypad to disarm the system.
- 2
  Place a ladder against the wall where the smoke detector is located, or beneath the detector if it is on the ceiling.
- 3
  Twist the cover off the detector with a counterclockwise motion. Remove the cover.
- 4
  Pull the battery out of the battery compartment inside the detector. Dispose of the battery properly.
- 5
  Blow out the battery compartment with a burst of compressed air. Place the replacement 9-volt battery in the battery compartment.
- 6
  Blow out the vents in the side of the detector's cover with bursts of compressed air. Twist the cover back on the detector with a clockwise motion.
- 7
  Press the ''On/Off" button on the control panel to arm the system again. Remove the ladder.

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