Home Security System

In this article, we will explore the steps involved in changing the battery of an ADT security system. Regular maintenance ensures the optimal functionality of your security equipment. We'll delve into the process, addressing common concerns and providing expert insights to facilitate a smooth battery replacement.

 How to Change an ADT Battery

Changing the battery of your ADT security system is a straightforward process that anyone can undertake with a little guidance. Here's a step-by-step guide to help you through the procedure.

 Understanding the Importance of Battery Replacement

The battery is a crucial component of your ADT security system, providing power during outages. Regular replacement ensures that your system remains operational and your property stays protected.

ADT batteries power the control panel and various sensors, guaranteeing continuous monitoring and immediate response during emergencies.

To keep your security system reliable, change the battery as soon as you notice a decline in its performance or receive low battery alerts.

Gathering the Necessary Tools

Before starting the battery replacement process, gather the required tools: a new ADT-compatible battery, a screwdriver, and a clean cloth.

Ensure the replacement battery is compatible with your ADT security system to prevent any compatibility issues.

Powering Down the System

To begin, power down the ADT security system by unplugging it from the electrical outlet. This ensures your safety during the battery replacement process.

Wait for a few minutes to allow the system to completely power down.

Locating the Battery Compartment

Find the battery compartment on the back or side of the control panel. The compartment is usually secured with screws.

Use a screwdriver to carefully remove the screws and open the compartment.

Removing the Old Battery

Inside the battery compartment, you'll find the old battery connected to the system. Gently disconnect the old battery from its connectors.

Safely remove the old battery from the compartment.

Installing the New Battery

Take the new ADT-compatible battery and carefully connect it to the system, ensuring the positive and negative terminals align correctly.

Place the new battery securely in the compartment.

Closing the Battery Compartment

Close the battery compartment and secure it by tightening the screws using the screwdriver.

Ensure the compartment is tightly closed to prevent any damage to the battery.

Powering Up the System

Plug the ADT security system back into the electrical outlet to power it up.

Allow the system to boot up, and ensure there are no error messages regarding the battery.

Verifying Battery Status

Access your ADT system's settings to confirm that the new battery is recognized and is functioning correctly.

Verify that the battery status indicates a full charge.


How often should I change the ADT battery?

It is recommended to change the ADT battery every 3-5 years, depending on the manufacturer's guidelines and any alerts from your security system.

Can I use a non-ADT battery for my ADT security system?

It's advisable to use an ADT-compatible battery to ensure proper functioning and compatibility with your security system. Using a non-ADT battery may void warranties and cause issues.

What if I don't replace the battery?

Neglecting to replace the battery can lead to your security system failing during power outages, rendering it ineffective. Timely replacement ensures continuous protection for your property.

How can I dispose of the old battery safely?

To safely dispose of the old battery, take it to a local recycling center or a designated battery disposal facility. Do not dispose of it with regular household waste.

Can I replace the ADT battery myself, or should I hire a professional?

You can replace the ADT battery yourself by following this guide. It's a simple process, but if you're unsure or uncomfortable, you can contact ADT or a professional for assistance.

Where can I purchase a compatible ADT battery?

You can purchase a compatible ADT battery from authorized ADT dealers, online stores, or directly from ADT.


Maintaining your ADT security system is crucial for its efficiency and reliability. Changing the battery at the recommended intervals ensures that your security system remains in top working condition, providing you with the peace of mind you need.