9V Lithium Battery ?????

[hammersley]

I just discovered that they makes these in 9 volt batteries... ... . I heard a PSA regarding changing your batteries in your smoke dectors (typical around clock changing time) - and a local fire Chief mentioned that these batteries - the lithium not specifically this brand - are the way to go and you can leave them unchecked for up to 10 years...



Now my smoke dectors are wired into the house and use battery as a backup... . thoughts on these --- would you spend the additional ?????



9 Volt Energizer Lithium Battery 9V Lithium Batteries - 10 Year Shelf Life



and



9 Volt Lithium Battery - Compare Prices, Reviews and Buy at NexTag - Price - Review

 

[testraub]

As an electrician who has changed many smoke detectors and batteries over the years I would say the cost is not real effective. You should change the whole smoke detector out after about 5-7 years. On a AC w/9V backup I just change the batteries when they start that very annoying "BEEP!" that drives you nuts trying to find which one has the low battery and change them all then.

 

[hammersley]

Changing out the detectors?????

I had not heard about that... ...



what brands are the best?????

 

[testraub]

I prefer FireX but Kiddie is good to. Those are pretty much all we use. I also usually have at least one CO2 Smoke Detector combo mounted as well. A bit more expensive but I always place it closest to the furnace.