Small flashing red lights and chirping sounds every 30 to 60 seconds can mean it’s time to change a smoke alarm’s battery. Some models may have a green flashing light or announce “low battery,” so ...

However, as smoke alarm companies discovered, temperature plays a big role in how batteries perform. Hotter temps create less electrical resistance and amp up battery activity, while colder temps do ...

A chirping smoke alarm often indicates a low battery. When it happens at night, it could be an environmental issue affecting the device's performance.

A dreaded problem strikes homes of all kinds every night: A smoke alarm, once quiet during the day, suddenly chirps a blaring siren, often when everyone is in their deepest sleep. There's no sign of a ...