How To Remove A Fire Alarm Battery. Smoke alarms and heat alarms. If the AC power fails battery back-up will allow the alarm to sound for at least 4 minutes.
Smoke alarms and heat alarms. If the carbon monoxide alarm is battery operated it must have a sealed battery for the duration of its lifespan which may be up to 10 years. If AC power fails and the battery is dead or missing the alarm cannot operate.
On Model 7010B Only.
Smoke alarms and heat alarms. If the AC power fails battery back-up will allow the alarm to sound for at least 4 minutes. Both types of alarm are interlinked by radio frequency without the need for WiFi. This Smoke Alarm must have AC or battery power to operate.
