What is the shelf life of these batteries?
1781164
All I can say is that they have a very low self depreciation rate. I suggest you use a search engine the question.
447147
I don't see a date on them, but I have ordered these batteries 3 or 4 times for at least 10 years. They last as long if not longer than the ones provided by the home security firm. I can't give you a time space, but they work quite well for me.
1870645
Don't even know if they have an expiration date, but mine have performed as expected. Replaced the original Panasonic batteries and have been doing the job for over 6 months. A good replacement battery.
793190
I ordered these batteries and I assure you, they were "fresh". The expiration date is in 2015. They are new batteries and they work great! I hope this helps....I was wondering the same thing, since they are less than half of what i can find them for locally :)
452217
Each box has a different expiration date based on when the batteries were made. The latest box i received were dated over 3 years in advance. I bought them in 2013 and the date stamped on the package is 2016. They may have an even longer shelf life but I use mine before the dates. I have been very pleased with the quality and have continued to purchase these batteries. Hope this helps answer your question.
126586
There's no real way to tell, and they don't have a set life span. After some time they will simply hold less and less of a charge, and they will need to be recharged more quickly and frequently. This is why I recommend the Nikon branded battery - the unbranded batteries I've owned all suffer from this problem very quickly.
2031262
Shelf life should be very similar to the Energizer battery of the same type. Their web site states, " Note: Manufacturer does not stamp this battery or packaging with expiration date. We guarantee battery freshness for minimum shelf life shown above." which is 4 years from purchase date. My guess is that 5 yrs is a safe bet in my opinion.
2177723
the warranty on these batteries is less than 6 months. i purchased 40 of them 2 years ago, and 6 went bad after 2 charges. it was more than 6 months after i purchased them, since i only use them in the fall, so the warranty was useless. i had to eat the loss. 6 out of 40 is, to me, not an acceptable loss.
716495
Not sure, but I have kept them up to 3 years in the original packaging and they have worked fine.
545758
There is no expiration date anywhere that I can see. These batteries I received are fine. After this, I bought another 10-pack of batteries of a different size. They were all dead. Same vendor. I am torn about continuing with him. But my Maxell LR41 batteries were fine. No problems.
727575
I'm not a vendor; I'm also a customer. Sorry I can't tell you what the expiration date was as I discarded the packing. If you store unused batteries in a zip-locked plastic bag in a refrigerator, they won't "leak" their charge.
127230
What is the shelf life of this battery unit if I plan to keep it as a back up battery?
1326656
Mine are dated to expire on Sept 2018. I purchased these batteries because they were advertised as "longest life", which I interpreted to mean "longest operational life". I was told that what Rayovac meant was that they had the longest shelf life. In fact, based on my own experience, these Rayovac batteries have an operational life only 75% as long as the PowerOne batteries I was using. To add insult to injury, I paid more for the Rayovac batteries on the mistaken assumption that they would give longer operational life!
315103
I don't know. I usually use mine within a month or so and they are fine. They are individually wrapped in a "vacuum" type package so I am guessing they have a long shelf life.
503812
There is no mfg date or expiry date on these batteries. However they worked fine. At couple of dollars and free shipping I am not complaining.
2141781
The ones I have are quite comparable. Also, just so you know... I've been told that these batteries have a 24 month warranty on them... so if you have any issues you could contact the company as well for a replacement or something.
787988
Sorry, there is no date on the batteries. I don't know what the guarantee period is. From experience over the past 10 years or so, the batteries remain useful for 4 or 5 years.