How long will a 9V battery power a smoke detector?
12 to 18 months
How long do batteries last in hardwired smoke detectors?
If your alarm is hardwired into your home's electrical system, replace the backup battery at least every 6 months and replace the smoke detector itself at least every 10 years.
How long do Kidde 9 volt batteries last?
two years
How often replace smoke detector 9V battery?
every 6 months
Can I use a regular 9-volt battery in my smoke detector?
Most smoke alarms use 9-volt alkaline batteries, but some use AA. So if this is the first time you've replaced yours, do open the battery compartments on your units and check before heading to the store. You wouldn't want to waste that extra hour.27 Oct 2018
Is there a special battery for smoke alarms?
Alkaline batteries and lithium batteries are suitable for 9V smoke alarms and other 9V products. The 10 year long life lithium batteries last up to 5 times longer than alkaline batteries and up to 10 times longer than carbon-zinc batteries.
What type of batteries are best for smoke detectors?
9V has been the battery of choice for smoke alarms for many years. However, nowadays, it is more common to see two or three AAs. AA batteries have about three times as much energy as a 9V.
Can I use a 9-volt lithium battery in my smoke detector?
A. Lithium 9Vs aren't recommended for smoke detectors unless you follow a strict battery replacement schedule. Those batteries maintain a high voltage until the end of their usable life, so they provide a much shorter “low battery” warning to alert you that it's time to swap in a fresh one.8 Feb 2014
Can lithium AA batteries be used in smoke detectors?
Don't change your smoke alarm batteries twice a year So batteries in those units will last far longer than battery-only units. For most alarms, you can use lithium batteries, which last for several years.
What is the best 9-volt battery to use in a smoke detector?
Energizer Industrial Alkaline 9V Battery
How long will a 9V lithium battery last in a smoke detector?
The 9V alkaline batteries and AA alkaline batteries generally last 12 to 18 months. Lithium batteries will usually last 5x longer than their alkaline counterparts, achieving around 5 years lifetime.