Quote:
Originally Posted by retiredguy123
Ordering them from Amazon is a cheaper way to go. You can get the hardwired type with battery backup for about 10 dollars each in a 6-pack. Also, it doesn't make sense to pay an extra 15 dollars each for the ones with a 10 year battery. They are the same as the cheaper ones that have an alkaline battery, except they have a lithium battery. If you want a 10 year battery, just buy the 9-volt lithium batteries separately for about 5 dollars each and replace the alkaline battery that comes with the 10 dollar detector. You will save money and have some extra alkaline batteries to use for something else.
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It is nice to provide options to people reading this thread. I opted to purchase retail from Lowe's (#38) and you opted to purchase online. I have no idea if your savings numbers are accurate. It doesn't really matter since this was a one time purchase.
While you were doing your cost analysis, I was heading to Lowe's with my replacement model number. My project took 1 hour and I reaped intangible savings from time incurred. Also, since my Alerts came with batteries, I will not have forgotten batteries rolling around in my junk drawer. Nice to have options.