Honeywell K14139

The Honeywell K14139 is a battery backup for select AlarmNet communicators. It is a 6V 3.1Ah sealed lead acid battery that will provide up to (24) hours of standby battery time during a power outage. It works with communicators such as the Honeywell LTE-IA, LTE-IV, LTE-XA, and LTE-XV.

You will need to install your K14139 inside your AlarmNet cellular or dual path alarm monitoring communicator if you want the device to work during a power outage. First, place the K14139 battery into the battery compartment found in the bottom right corner of your AlarmNet communicator's back plate. Use the battery retainer clip to secure the K14139 battery into the back plate by screwing down the included screw into the left side of the retainer clip. After plugging in the AlarmNet alarm monitoring communicator’s transformer, connect the red and black spade connectors to the battery terminals. You will notice that each battery terminal is color coded (black or red), so match the red spade connector with the red terminal and the black spade connector with the black terminal when making the connections. Next, plug the battery cable connector into the J1 battery port on the communicator’s circuit board. Finally, after the K14139 battery is connected, make sure to close the plastic enclosure to clear the alarm communicator’s tamper fault.

If you ever lose power to your AlarmNet communicator, a programmable power loss signal will be sent to the central station within 1-3 hours of the power outage. The Honeywell K14139 battery will then provide all the needed voltage to keep the communicator functioning properly. During a prolonged power outage, the battery voltage will drain down as it continues to supply power to the communicator. After approximately (24) hours, the voltage will drop to around 5.7V ±5% which will trigger a programmable low battery message to be sent to central station. If you do not restore primary power to the communicator once the low battery signal is reported, any future alarm signals may not be sent out from the AlarmNet device. The alarm monitoring communicator will shut down completely once the battery voltage reaches 5.1V. Approximately 1-3 hours after you are able to restore primary power, a power restore signal will be sent out to the central station, as long as the power was restored before full communicator shutdown. The AlarmNet communicator’s charging circuit will then recharge the depleted K14139 Battery Backup so that it is ready to supply another (24) hours of standby power for the next power outage. If you cannot get home until after the communicator has shut down completely, a power-on reset signal will be sent as soon as you restore power and the device will automatically initialize and begin to recharge the battery. It may take (24) hours for the K14139 to recharge completely after a full shutdown of the communicator.

Similar to a car battery or the rechargeable LYNXRCHKIT-SC, LYNXRCHKIT-HC or LYNXRCHKIT-SHA LYNX Series battery backups, the K14139 Battery Backup eventually will drain down to the point where it cannot recharge. If you are getting a low battery message on your AlarmNet communicator and primary power has been present for a full (24) hours, you will most likely need to replace your battery backup with a new Honeywell K14139. You can check the voltage of the rechargeable battery by metering across the (2) battery terminals with the battery disconnected from the charging circuit. A battery with adequate voltage will give you a reading above 6V.