• Contact Us
  • Select a Location
    Close Location Selection

    Current Location:

    Let us know the location you'd like to browse.

    Select a Location

Replacing the Batteries in the Cox Homelife Door Locks


The following is used to support the door lock and battery.

  • The lock is powered by four alkaline batteries located on the interior side of the lock, under the interior cover.
  • The recommended battery is a new non-rechargeable alkaline battery.
  • Based on ten operations per day, the battery is expected to lock for over a year. Systems that sit idle may continue to be operational for longer.
  • The following help to extend the battery life.
    • Get the maximum out of the life of your batteries by establishing the lock setting switches to position one, two, and three.
    • Ensure the door is aligned and the lock is not making several attempts to lock or unlock, causing excessive battery use.
    • Avoid turning on the keypad light more than necessary.

Complete the following steps.

  1. Using the hex key provided, remove the three screws that hold the interior cover in place.

    The hex key is size 3/32. If you misplace it, a replacement can be purchased at a hardware store.

    Image showing the screws being removed from door lock

  2. Remove the interior cover.

    Image showing the interior cover being removed from door lock


Remove the battery pack.

Image shosing the battery pack being removed

Remove the old batteries.

Image showing the old batteries being removed

Place four new alkaline batteries in the battery pack.

Image showing the new batteries being inserted

Reinstall the battery pack. Make certain the arrows on the DOOR indicator are pointing towards the door.

Image showing the battery pack being reinstalled

Search for More Articles