Smoke alarms typically use either a 9-volt battery, AA batteries, or in some cases, a lithium battery that can last up to 10 years. The type of battery depends on the model and manufacturer of the smoke alarm.
How can I tell if the battery in my smoke alarm is low?
Most smoke alarms will emit a chirping or beeping sound to indicate that the battery is low. This sound will typically occur in regular intervals (about once a minute) until the battery is replaced.
How often should I change the battery in my smoke alarm?
It's recommended to change the battery in your smoke alarm at least once a year, or when the alarm emits a chirping sound indicating a low battery. Many people follow the routine of changing the battery when they adjust their clocks for Daylight Saving Time.
Can I use rechargeable batteries in my smoke alarm?
It is not recommended to use rechargeable batteries in smoke alarms because they may not provide a consistent voltage over time.
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