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How to Replace the Battery for a Home Alarm System

A home alarm system is designed to run off of battery power in the event that the electric lines in the house stop working, regardless of whether as a result of a power outage or an act of a despicable intruder. A battery that has lost its charge must be replaced or the alarm system could be compromised. The battery can be swapped for a replacement -- available from hardware stores and select electronic shops -- by the owner.

Things You'll Need

  • Phillips screwdriver/key
  • Replacement battery
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Instructions

    • 1

      Enter the password on the keypad attached to or next to the home alarm system's control panel. Navigate to the configuration menu. Leave the settings as is.

    • 2

      Go to the fuse box. Trip the circuit breaker that supplies electric power to the control panel.

    • 3

      Remove the control panel cover. If screws hold the cover in place, remove the screws first with a Phillips screwdriver. If there is a locking latch holding the cover in place, use a key to unlock the latch, swing the latch open and then open the cover.

    • 4

      Loosen the two screws on the top of the battery that is inside the control panel; if the battery is held inside with a strap, pull the strap off first. Unwind the two wires from around the screws. Pull the wires off the screws. Pull the battery out of the control panel and dispose of it properly.

    • 5

      Place the replacement battery into the control panel so it occupies the same position as the other battery did. If there is a strap, pull the strap across the battery to secure it inside the control panel.

    • 6

      Loosen the two screws on the top of the replacement battery. Wind a wire from the control panel around each of the screws in the same manner as that of the other battery. Tighten the screws.

    • 7

      Place the cover back on the control panel; reattach screws or lock the latch, depending on how the cover is kept on the control panel.

    • 8

      Restore the electric power at the fuse box. Enter the password into the keypad. Select "Reset" to initialize the home alarm system.

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Home Alarm Systems
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  2. How to Disconnect a Home Alarm From the Main Power Supply
  3. How to Replace the 9V Battery in a Smoke Alarm
  4. How to Troubleshoot a Home Alarm
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  6. How to Replace a Battery in a Honeywell Alarm System
  7. How to Change a Home Alarm
  8. How to Disconnect the Low Battery Alarm on a Home Alarm System
  9. How to Change the Honeywell Home Alarm Battery
  10. How to Change the Battery in a Brinks Home Security Alarm
  11. How to Evaluate Alarm Systems for the Home
  12. How to Stop the Alarm on a Home Alarm System

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