How To Know When Smoke Detector Needs New Battery. Only the device with a low battery will chirp. Its as simple as that.

Remove the battery from the battery compartment if your smoke detector uses the. A smart touchscreen hub connection that lets you know when the battery is low. Knowing how to change a smoke alarm battery is essential to maintaining a safe home.
Only the device with a low battery will chirp.
Press and hold the test button on your smoke detector until the alarm sounds. Its as simple as that. Battery is There but Part of the Terminal is Obstructed. Turn off the power to the smoke detector at your circuit breaker.
