What year was the batter manufactured? FYI From what I read, regardless of use, lithium polymer batteries start going bad and after 2 years.
53050
After two batteries, I finally bought this one but didn't see a whole lot of improvement dont know about year. Battery did have a charge and fit perfectly, but wasn't worth the change.
53051
I'm not sure on the year. It came from China. It took a full charge and is working perfectly. The phone is like new and carries a charge like when it was new.
53052
No idea when it was manufactured, but from what I know a lithium polymer is that as long as its not sitting dead it doesn't matter. You do still have a finite amount of charges before the batteries start to degrade which is usually around 2 years or approx. 500 charges. When I bought this battery I did a full charge and drain of the battery and it worked fine for me. If I was heavy on it I could easily kill it in 4 hours, if I used it normally I could get 30 hours out of it.
53053
Could not load the response page but definitely have an answer.....At almost exactly 2 years.... the battery on our Droid RAZR started having problems. It would only last 4 hrs. We went online and bought one marked as an extended life battery and it works great
776286
I think I bought these batteries in 2013. They show an expiration date of March 2019.
881714
I don't know but mine lasted about a year - now everyday I get the message your battery is charging normally but it is failing. Lasts about 2 - 3 hrs now.
376874
Contact the seller. I've had this battery for 2 or 3 years and have not had this issue.
848835
So am I! The date on the few batteries that I checked was 2020; six years from now. Duracells are guaranteed for 10 years -- when they are fresh. I wonder what the charge is on mine. Mine are going back due to misrepresentation.
206694
Date of manufacture Dec.2013 ,average lifespan of this battery 3 1/2 h aprox.
466252
10 years is the *SHELF LIFE* (estimated). When used in something, it won't magically last 10 years unless that something has a very low current draw.Alkaline 9V batteries might have 550-650 mAh, and Lithium 9V batteries might be 1200-1300, so really you're talking about doubling the capacity, but with a longer shelf life.In other words, don't pay attention to just the shelf life or you'll be in for a shock when it only lasts twice as long in a smoke detector... just bad marketing there, or customers paying attention to the wrong metrics of comparison.
1142716
I have had it for two years and its still in the box. Too many battery warnings came with it. Its in the lithium family like the ones that were catching fire on Boeings new airliners. I may mess with it down the road but not in a hurry.
702768
Mine lasted one year. I am now using the OEM battery again. OEM still works, after market battery junk.
481244
I bought AAA batteries from this seller in October 2014. The listing says 10 years, and that is why I bought from him. These batteries are dated March 2021. They were available elsewhere on ---- for two dollars less with the same date. I contacted the seller and asked for a $2.00 refund. He blamed Amazon for the "10 year shelf life statement" and did not respond until I filed a return request with Amazon for a not as described product. Since this happened, I see the listing has not been corrected. This speaks for the seller's integrity in my opinion.
1059594
I really don't know but I have been very happy with them, using them in my electric lawn mower. I wonder if they make the same battery's in lithium so they would last a bit longer?
499358
Mine lasted just under 2 years. I am now having to decide if I replace the battery or just buy another type of cordless vacuum.
402503
The lithium battery will hold a charge for up to 18months when not in use. No memory effect so charge away!
2095854
I have had mine for over a year now and they are still fine.A lithium-Ion battery shouldn't really go bad.Thay don't have a charge memory where they loose capacity every time you use them..Just don't leave them out in the cold and not charged because that does seem like it can mess them up and don't recharge until they have cooled off..
1688281
According to the manual, CR2032 lithium battery (roughly the size of a nickel). Under normal household use, I'd guess it will last years.
392248
I've had this for a little over two years. Battery "tests" OK, but it's hard to know how accurate that really is. In my experience all batteries test well until they suddenly stop working. I'm guessing I wouldn't get the time out of it now, that I would of gotten out of it two years ago. I will probably replace the battery in a year as preventative maintenance. I had purchased the Wayne branded battery they offer for this unit.
1375893
I got about 6 months out of a basic Kirkland battery. You could double that if you used a Lithium Ion battery.