How Do I Replace the Battery in My Honeywell Security System?

You can replace the battery in your Honeywell Security System by first opening up the system. Then locate the battery, and use the proper tools to remove the old battery and add the new one. If possible, keep the system transformer plugged into the wall outlet during this process.

Keep in mind that the exact steps for removing the battery will vary between different Honeywell Systems. However, the process is largely the same across every Honeywell Alarm Panel. Also remember that different panels will use different types of backup batteries. Make sure that the battery you add is appropriate for your system. Using an incorrect battery could cause the system to experience permanent damage.

It is recommended that you remove AC Power prior to attempting to remove the old battery. This can be done by either unplugging the panel's transformer, or by turning off the breaker for the outlet being used to power it.

Complete the following steps to replace the battery in your Honeywell Security System:

1. Open the system. Every battery in a Honeywell System is located on the inside. For Honeywell VISTA Panels, simply open up the metal cabinet that encloses the system. A key may be required if the cabinet is locked.

For wireless systems, such as LYNX Touch Panels or the Lyric Controller, there are usually tabs or screws holding on the back cover. Any tabs can be pressed in, and any screws can be removed using a screwdriver. Once the back cover is removed, the battery will be exposed.

Removing the cover will cause a tamper response from the panel, so make sure that you put the system on test with the monitoring station first if the system is being monitored. When the tamper is triggered, press any key on the panel to silence the trouble sound.

2. Remove the old battery. Locate the system's backup battery, and remove it from the system. For VISTA Panels, the backup battery consists of a large black box inside the system. Disconnect the black and red wires that are connected to the battery's terminals. You may need a screwdriver to complete this step.

For wireless panels, there will usually be a protective cover holding the battery in place. You may need a screwdriver to remove this cover so that the battery can be taken out. With the cover removed, the backup battery's modular plug can simply be unplugged and removed.

3. Apply the new battery. Take the fresh battery and add it to the same location as the old battery. For VISTA Panels, it is recommended that you reapply AC Power first. Once AC power has been restored, simply connect the panel's battery wires to the two connection tabs on the battery. Make sure that the red wire is connected to the positive (+) terminal and that the black wire is connected to the negative (-) terminal.

For wireless panels, plug in the new battery in the same modular connector that was used by the old battery. Then reapply the protective cover to keep the battery held in place. You will need a screwdriver to do this. Finally, reapply AC Power.

4. Close the system. If using a VISTA Panel, close the metal enclosure. If using a wireless system, reapply the back cover and any securing screws. To clear the low battery message, perform a walk test of the alarm panel. If the low battery message persists, the battery may need to charge for several hours before the trouble display will clear. This guide will show you how to walk test a Vista P Series panel.

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