Adt has used a number of different sensors each of which is different.
Adt motion sensor battery change.
You can open the sensor with a flathead screwdriver wedged into a notch at the base and twisting to remove cover.
Change both if there are two and replace with two new batteries.
Adt motion detectors report a low battery condition to the adt service center.
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How to change your battery.
Change both if there are two and replace with two new batteries after at least 30 seconds.
If the battery is dead the detector may not work at all.
Put the alarm system in test mode.
Always exercise caution when interacting with your battery.
Next put your keypad into test mode after calling adt doing so with your access code 50.
If an battery is determined to be low the keypad will notify you with a recurring beep.
Next put your keypad into test mode after calling adt doing so with your access code 50.
Learn how to easily change the battery in your adt motion sensor.
Most systems run a test once every 24 hours to assess battery life.
Once cover is back on wait 4 minutes to test.
This video is about changing a motion battery.
Adt will call you and tell you which sensor needs a new battery and can offer advice on how to change the battery.