Smart Home Starter
The Smart Home Starter team picks the products and services we write about. When you buy through our links, we may get a commission.

How to Stop the ADT Alarm from Beeping (Low Battery)

Last Updated Mar 24, 2022
low battery icon
Tech Supportal
24/7 On-Demand Live IT Support. Step by Step Real Help
Join Tech Supportal and enjoy 24/7 tech support for your connected home. Get Started

ADT Alarm Systems help protect your home and are set to beep as an alert for multiple reasons. While ADT alarm systems are beneficial, they can also be difficult to navigate and troubleshoot for new users. If you are hearing a constant beeping coming from your ADT Alarm System, it means your battery is running low, and you may want to stop it.

An ADT Alarm System’s low battery beeping can be silenced by pressing the “OFF” button or “#” button on your keypad. Depending on which version of the alarm system you have, pressing either of these buttons will silence beeping coming from your device.

Stopping the beeping coming from your ADT Alarm System due to a low battery is achievable, but it may just be a temporary solution. There is most likely a good reason why your ADT Alarm System is alerting you, and you should not just ignore it. Continue reading on to learn more about low battery issues and long-term solutions.

How to Stop the ADT Alarm’s Beeping

A low battery or a dead battery will cause your ADT Alarm System to beep. This is to make you aware that the battery does not have a full life and can prevent it from operating correctly. The beeping is actually a good thing because it alerts you for your own safety.

Once you are alerted that your battery is low, you will no longer need to hear constant beeping as a reminder. As mentioned, quieting the beeping is quite simple. You can silence the beeping coming from your ADT Alarm System by:

  • Pressing OFF on the keypad
  • Pressing # on the keypad
  • Referring to ADT user manual if other options don’t work

After Stopping the ADT Alarm’s Beeping

It’s important to note that just because you stopped the beeping, that does not guarantee that your problem is fixed. By silencing the beeping, you are just quieting the alert for the low battery. Depending on the issue as to why your battery went low, you may need to make further adjustments to resolve the issue.

Based on the issue at hand that is causing your ADT Alarm System to beep, there will be different ways to approach your low battery issue.

Why Your ADT Alarm Has Low Battery

Your system is alerting you because something in your ADT Alarm system has changed. There are two reasons your system could be alerting you that your battery is low, which is causing the beeping noise. These reasons include:

  1. Your ADT Alarm Systems battery just needs to be recharged.
  2. Your ADT Alarm Systems battery life span has run out.

If Your Battery Needs to Be Recharged

Sometimes, your battery just needs to be recharged. Often this will be due to an outside factor, such as a power outage. When something like this occurs, your ADT Alarm System will begin to rely on the backup battery. The beeping will simply begin to alert you that it is now using the backup battery rather than the original.

This isn’t uncommon, and you should follow these steps to quiet the beeping coming from this alert:

  1. Silence the beeping by pressing OFF or # on the keypad.
  2. Wait for the power to be restored.
  3. After power is restored, give the system 48 hours to recharge its original battery for use again.
  4. If the alert displayed for “low battery” doesn’t go away after 48 hours, look into replacing the battery.

If Your Batteries’ Life Span Has Run Out

If you haven’t experienced any unusual factors and your ADT Alarm System begins to beep at random, it means it’s more than likely time to change the battery. Luckily, replacing the battery in your ADT system is simple.

Follow these steps if your battery needs to be replaced:

  1. Silence the beeping by pressing OFF or # on the keypad
  2. Use either a mobile device or computer to log into your MyADT account
  3. Click the “replace battery” option once logged in

For specific step-by-step instructions on how to replace the battery in your ADT Alarm System, click here.

Final Thoughts

Unforeseeable circumstances that cause your ADT Alarm to beep due to a low battery are inevitable. Instances, such as power outages, are beyond your control. However, you can make a conscious effort to avoid low battery beeping caused by a battery’s life span.

You should change your system’s battery every 3 to 5 years. This is the suggested time frame as a precaution. By doing so, you will not only minimize the chance of your alarm going off, but you will be better at protecting your home as well.

Sign up for our newsletter
Smart Home Starter
This site is owned and operated by Time Off Club, LLC. is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to This site also participates in other affiliate programs and is compensated for referring traffic and business to these companies.