The most well-known use of the 9-Volt battery is in smoke alarms or carbon monoxide detectors. Smoke alarms or, in some cases, heat-sensitive fire alarms use 9-Volt batteries as the power source. It is generally recommended that the batteries in a smoke alarms and carbon monoxide detectors be changed about every six months to keep the batteries fresh, as the charge can dissipate over time. Other common uses for 9-Volt batteries include radio controllers, clocks and walkie-talkies. You can count on our ACDelco Super Alkaline Batteries to deliver maximum power and last three times longer.
- No mercury or cadmium
- 7-year shelf life
- Commonly used in smoke alarms and carbon monoxide detectors
- Trusted and reliable brand