To temporarily silence your ADT low battery alarm, enter your [security code] + [OFF] or just press [#] on your keypad. For touchscreen panels (like ADT Command), tap [Disarm] and enter your security code.
To disable low battery alerts, the method depends on your device. For iPhones, there is no direct toggle, but you can bypass it using an automation. For Androids and computers, you can adjust settings to silence or turn off the notifications.
An ADT "System Low Battery" means the rechargeable backup battery inside your main control panel is depleted or needs replacing. Your system usually operates on standard AC wall power, but uses this battery to keep your home protected during power outages.
Most systems will begin beeping or chirping as a result of a total power outage or failure to recharge the system backup battery. For many of our most popular systems, beeping alarms and low battery trouble beeps can be silenced by pressing the [OFF] or [#] buttons from the keypad.
To stop your house alarm from beeping due to a low battery, you can temporarily silence the keypad by pressing the [Off], [Reset], or [#] button on your system. To fix the beep permanently, you will either need to replace the panel's backup battery or change the batteries in your wireless door/window sensors.
To get an alarm to stop saying "low battery," you must address the battery itself or reset the system's memory. Since the fix depends on the device, choose the scenario below that matches your equipment:
That annoying smoke detector beeping can be triggered randomly by dirty sensors and a number of other elements. Here are some other common causes of false smoke alarms: Smoke from burnt food or cooking. Fireplace smoke or outdoor campfires blowing indoors.
To temporarily silence your ADT low battery alarm, enter your [security code] + [OFF] or just press [#] on your keypad. For touchscreen panels (like ADT Command), tap [Disarm] and enter your security code.
To stop a smoke or carbon monoxide alarm from beeping (chirping) every 30–60 seconds, replace the battery. This low-battery signal is the most common cause, requiring you to open the device to replace batteries, clean it with compressed air, or reset it. If it still chirps, the unit may be expired.
ADT batteries typically last between 1 to 5 years depending on the specific device and usage. Instead of replacing them on a strict schedule, you should change them when your system notifies you of a low battery.
Replacing the backup battery in your ADT security panel takes only a few minutes. Most ADT panels use either a 12-volt Sealed Lead Acid (SLA) battery (housed in a wall box) or a rechargeable lithium-ion battery (located directly behind the touchscreen).
Your alarm system is likely displaying a low battery message for one of three main reasons:
Yes, your heat might still work briefly, but low thermostat batteries will likely cause your HVAC system to function erratically, short cycle, or stop working entirely. The thermostat relies on these batteries to send accurate signals to your furnace, and low voltage can cause system failures.
To turn off Low Battery (or Power Saving) Mode, you can simply use the quick-settings panel or adjust your main device settings. When it's off, your battery icon will return to its normal color.
The beeping is your signal to replace the battery before it runs out completely, so the unit can continue to provide protection. Aim to replace it sooner rather than later if you can. If you put it off and the beeping eventually stops because the battery has worn out, it's easy to forget that it needs replacing at all.
To stop a smoke detector from saying "low battery," completely replace the dead batteries and reset the device. If it is hardwired, remember to check the backup battery.
No, a smoke detector does not always have to show a green light. How the green light behaves—or if it is on at all—depends entirely on the brand, model, and the specific power source.
A smoke detector may keep chirping after a battery change because the alarm's internal memory retains an error code, the new battery isn't seated properly, dust is blocking the sensor, or the unit itself has reached its 7 to 10-year expiration date and needs to be replaced entirely.
To silence a low battery beep on most ADT systems, press [OFF] or the [#] key on your keypad. Some models may require you to enter your [Security Code] + [OFF].
The steps to turn off low battery alerts depend on your device:
To silence a low battery beep on your house alarm, first acknowledge the alert on your keypad by pressing [OFF], [ (Star)]*, or [#], followed by your security code. Then, either replace the backup battery in the main panel or replace the batteries in any wireless door/window sensors.
For many ADT systems, an alarm or low battery trouble beeps can easily be silenced. Just press the OFF or # button on your keypad. If pressing those buttons on your keypad doesn't silence the low battery alerts on your fire alarm, please check your system user's manual for more detailed next steps.
Your ADT system is likely saying "low battery" for one of two reasons: the backup battery inside your main control box needs replacing, or the batteries in one of your wireless sensors (like a door/window contact or motion detector) are depleted.
We recommend changing all your wireless sensor batteries on an annual basis or as directed by your ADT Self Setup system. Note: Only CR123A batteries can be ordered through ADT. For all other batteries listed, you will need purchase one from an online or local retailer.