System Battery If you have experienced a recent power outage or if your system has been running on battery power rather than AC power for any other reason, it may just need to be recharged. Allow your system 48 hours to recharge the system battery.
If so, the device will run on its backup battery for up to 24 hours, and you will get a low battery alert as it is depleted. If AC power is not restored before the battery dies, the device will power down.
All good alarm systems have back-up battery power. It ensures they remain for at least 12 hours in the event of a power outage (power cut). When power is restored following an outage, the system is designed to start working normally and also recharge the battery. All batteries have limited life.
When you order on MyADT, your QSP provides one free system battery per year. Additional system batteries cost $29.99.
Although the batteries in your door & window sensors may have a shelf life of up to 10 years, when used in a device, battery life expectancy is up to 2 years. Increased use of a sensor will shorten the life of its battery.
The system battery is a backup power supply. If you have experienced a recent power outage or if your system has been running on battery power rather than AC power for any other reason, it may just need to be recharged. Allow your system 48 hours to recharge the system battery.
98% of the time an alarm rings during a power cut is because this battery is dead! Therefore when the mains is removed, the main control panel battery can't keep the system running so the external sounder starts ringing to inform you there's a problem.
Low System Battery
Allow your system 48 hours to recharge the system battery. If the problem persists 48 hours after AC power has been restored, your battery should be replaced. Please refer to the Identify Your System Battery page to determine which battery your system uses.
Also, you may see a Low Battery warning on your system if there's been an extended power outage at the premises. In this case, the warning will go away once the battery is recharged, typically in 24 – 48 hours, and there is no need to change the battery just yet.
DIY Battery Replacement
Use your access code to disarm and disconnect your security system from power. Open the control panel. Carefully remove the old batteries and dispose of them according to local regulations.
If the keypad for your home alarm system starts beeping, it's a sign that the power supply is low and the battery might need to be replaced. The keypad may beep infrequently at first, but it will beep more consistently as the power supply drains.
Home alarm system battery replacement cost
The typical cost of a replacement burglar alarm battery is between £12 and £30 depending on the type and make of battery.
Some alarm systems operate using a rechargeable battery specifically selected to operate with that device. Something like a 12-volt 4.8 AH rechargeable sealed lead-acid battery runs on a trickle charging system. Trickle charging allows a battery to self-charge at a low rate in order to remain fully charged.
Dispose of your old battery appropriately. To find a recycler in your area, visit www.call2recycle.org/locator. Returning a lead-acid battery to a recycler listed on this site is free of charge and will ensure that it is being recycled according to all applicable regulatory requirements.
Yes. In case of a power loss, the back-up battery will activate and will operate your alarm system for several hours. In the event your system battery is or becomes low, a low-battery signal will be sent to ADT's Customer Monitoring Center.
Your Base has a rechargeable battery. It is likely your Base needs to be plugged into an AC power outlet to recharge. Make sure your Base's power supply is securely plugged into your Base and plugged into a working AC power outlet.
If a device is not working due to the battery running flat, your security and smoke detection system is at risk of being compromised. ADT strongly recommends that you replace the battery at your earliest convenience and that you use an ADT qualified Technician to service your system.
Place the new battery in correctly, put the front cover back on, and snap it into place to close it. Note that you may have to reset your security system. You can do this easily by entering your code and choosing “off” two times. Then remove the system from test mode.
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.
Most systems can take either a 12V 7Ah or a 12V 4Ah battery. The 4Ah size is used in smaller panel boxes. A few systems may use different voltage and Ah ratings.
You will see low batteries as a trouble condition on your home screen in the Control app. Tap the trouble icon to see a list of devices with a low-battery condition.
Yes, house alarm systems work when there is no electricity as long as there is a backup power source. But you should keep in mind that even with a backup, there is still the potential for the power source to go out, and the house alarm will go off if the battery dies.
As mentioned before, an alarm battery usually lasts for three to five years. However, systems with motion sensors tend to be better at conserving energy and therefore, can have longer average battery life than simple alarm systems.
Many alarm systems will beep when the battery power is low. You may hear a beep every few hours or once a day when the system runs its automatic battery test.