How Long Should A Smoke Detector Battery Last. But since 9V became the standard for smoke detectors battery companies have made better 9V smoke detector batteries. On the other hand the batteries in hard-wired smoke alarms can also last for ten years though not as the primary source of power.
Please do not replace the batteries in your Base Station with batteries that are not rechargeable. After this time the entire unit should be replaced. If the landlord is uncertain check the unit itself for date of manufacture.
Long-life battery smoke detectors last up to 10 years before they need a replacement.
People are generally aware that battery-operated smoke alarms need. Most alarms have the date of. Fire Administration most alarms have a life span of 8-10 years. Not how long the unit will.
