Honeywell Lynx Touch L5210—Battery Replacement

Follow the instructions below to replace the backup battery in your system’s panel. The Honeywell Lynx Touch L5210 panel requires a Honeywell LYNXRCHKIT-SC or LYNXRCHKIT-SHC, which can be purchased from Indiana Alarm or a battery store. You can call or text a Support Representative any time at 317-399-5748 to order one.


Step-by-Step Instructions:

1. Press the top tabs with a screwdriver, then pull the front faceplate down.
l7000 honeywell home security panel top with arrows

2. Remove the battery holder screw, then unplug the battery from the circuit board to remove it.
002 lynx touch battery replacement 2

3. Remove and replace the Honeywell LYNXRCHKIT-SC 7.2 Volt 1100 mA battery.
lynx plus battery 3 1

The battery can take up to 24 hours to fully charge and the low battery warning may be present until charging is complete. To charge the battery, simply ensure the A/C power is connected to a working outlet while your battery is connected in the panel.


Clear the Panel Alert

See instructions below for how to clear the error alert and stop alert beeping on your panel.

1. The Lynx beeps, and troubles appear on the main screen or with trouble icons. Press Security, then press System to view the trouble condition.

2. Press the home button, then enter your user code to silence and reset trouble conditions. The trouble will not reset until the core problem has been corrected.

3. Press Security, press System, then press the back arrow to exit.