General Battery Help

A low battery warning is most often displayed as BAT, LOW BATT or SYSTEM LO BAT on the touchpad. This warning signals that your battery is low and must be either recharged or replaced.

ADT offers several battery-replacement options for our customers, including a self-service option on most systems and devices. A few easy steps will get you ready to replace a low battery.

How can I silence low battery beeping on my ADT alarm?

A low battery warning is most often displayed as BAT, LOW BATT or SYSTEM LO BAT on the touchpad. This warning signals that your battery is low and must be either recharged or replaced. You can learn how to silence you specific panel by visiting our Silence Low Battery Beeping FAQ page.

NOTE:

A low battery message will remain as a reminder of the low battery condition until the battery is recharged or replaced.

How can I determine if the low battery signal is coming from the system or a sensor?

The source of a low battery signal may be either the system backup battery, or it could be from a sensor, like a door sensor, smoke detector, or glass break sensor. While it varies from system to system, in general:

If a sensor has a low battery, the signal will be indicated with a zone number.
If there is no zone number, then it is likely that the system battery is low.

How can I determine if my system battery needs recharging?

The system battery is a backup power supply. If you've experienced a recent power outage or if your system has been running on battery power rather than AC power for any reason, it may just need to be recharged. If the problem persists 48 hours after AC power has been restored, your battery should be replaced.

What kind of battery do I need for my ADT alarm?

We can help you determine which kind of battery you need. Find out which battery type your system requires by checking our System Battery Replacement page or our Sensor Battery Replacement page. Or you can chat with a live agent by selecting the Chat Now button.

How can I purchase a replacement battery?

You can order the most common batteries on MyADT, or through many popular retailers like Amazon, BatteriesPlus, Target, Walgreens, and Walmart.

Where can I find instructions to replace my ADT battery?

We have battery replacement guides for most ADT batteries. First, visit the System Batteries Replacement or Sensor Battery Replacement page to determine which device you have, and then select the appropriate device to see the ADT battery replacement instructions.