cr123 Batteries Frequently Asked Questions

How Long Will a CR123A Lithium Battery Last in an Alarm Sensor?
Battery life varies between sensors. One sensor may have a significantly longer battery life than another, even when using the same battery. Learn about alarm sensor batteries.

What Kind of Battery Does Alarm Grid Use?
Alarm Grid equipment, systems and security sensors use many different types of batteries. Learn more about the batteries that are used with Alarm Grid equipment.

How Do I Replace Batteries in Honeywell Door/Window Sensors?
Replacing the battery in a Honeywell door and window sensor is a simple process. First determine the type of battery that the sensor uses. Then remove the back cover and the old battery. Finally, insert the new battery into the sensor. Learn more about replacing batteries in a door sensor.