what's the life span of this batteries?
1987398
the original two batteries I had lasted almost 4 years. One of the two replacement batteries only holds a good charge. Second battery only holds a charge for one use of the sweeper.
1987399
Original battery lasted 2-3 years, first replacement did not hold a charge and I was given a second replacement which is holding up...so far...but it has only been a little over a month and so far, so good!!!!
1877214
I bought the batteries a year ago and they had a 7 year expiration date. We used them in 2-way radios for 12 hours over 4 days and did not have to replace one. Much better performance than the copper tops.
2148305
These are a high quality battery. Youre looking at a long shelf life. Right around 10 years or so. Obviously this varies depending on storage and brand quality. And of course they will slowly loose some energy every year. They are high quality reliable battery. Thats why they started getting used in flashlights; was due to the long shelf life.
583431
I've had them HOLD there charge for 4 months of non use!up to 2 months of off and on useand for at the irish fest shooting and video taping 2 - 4 hours depending on how hard I'm goingThey do hold up well I cannot complain!Those batteries that only cost a few dollares and ya I've tried them!NO.....don't hold the charge for long and don't last that long either.I've had the cheapies go in 2 - 3 years you know freshly charged and Dead in 30 min.
1799586
Brilliantly in my experience. Been using them for weddings, as primary batteries. I can't remember now, but I believe in my review I put a number on how many shots I got from them. I purchased them before I did the firmware update, and updated after my 1st or 2nd use, they still work wonderfully. The only thing I don't know if their longevity...I'm not positive these will last as long as OEM, but so far I have absolutely no indication that they won't.
384229
I have had mine for 10 months now and my husband tested the batteries a couple of weeks ago. They still tested pretty strong so my guess would be something in excess of 18 months.
873644
07-2016. I'm sure that the short life span has to do with poor storage practices. They're usually pretty good batteries.
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..
400162
Mine are dated 2012. Official Energizer batteries and most batteries in general with have a specific expiration date.
1153731
My batteries like these (I have a few) have lasted well over a year. Average with daily use has been a year and half and more.
452216
10-2016 I love these batteries, 1 pair of them last anywhere from 90-106 hours in my oticon hearing aids.
1570688
I got mine three months ago and mine expire in 04 of 2016. I like these batteries and they are the bet I have found.
1982411
Mar 2018. But they work like regular battery. I have been using Alkaline battery for 30 years on my little device. This last less than 1/3 of duration.
187125
Sorry, I've no idea. They just didn't seem to last as long as batteries I buy locally.
1330315
Have only had mine a little over a year, and I don't use it daily. The batteries still seem as good as when new. They hold a charge even when I leave them unused for a week or two.
608533
The batteries I received were in the original packaging. The expiration date on the batteries is March 2021.
2217092
The expiration on my batteries is October 2016. I have had some new batteries that didn't work however which made me wonder how long that actually keep.