What is the date of manufacture of these batteries? What is the average lifespan of this battery?
206694
Date of manufacture Dec.2013 ,average lifespan of this battery 3 1/2 h aprox.
1662399
The batteries have a reference number, a lot number and an SN number on them. But no date that I can see. I charged them when I got them. The first set of four I bought in 2012 and the second set of four in 2014.
941424
Hi Grant! I don't have quantitative data, unfortunately, and I could find no numbers on the Web. We've found the life of these batteries (between charges) to be acceptable for our uses. We're not pros, so we don't go out for extended time periods and burn the batteries all the way down. We've not been caught short or in need of a charge by these items, under our use conditions. Sorry I don't have better info; all we can say is we've used them for a short while and noticed no operational difference from OEM units in our hands.
971476
I received 2 of the Exide RF- 31D batteries on July 19, 2013. I just checked the factory date on the batteries. Both batteries were dated June 2013. I use the batteries on my solar backup system and they are holding up well.
936818
Ordered Jan 2015 and the batteries have a production date of August 2013 and an expiration date of March 2019. I randomly tested 20 out of the 100 and all tested good.
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.
1270126
I bought two batteries at about the same time. One has a date of 2007 and the other has 2010. I don't know which seller was which, but both batteries have performed beautifully and were well worth the purchase.
1229470
I don't know, but I suspect they were older batteries when I received them because they did not last very long
1467817
The following data is on the back of the battery: CELL ORIGIN JAPAN FINISHED IN CHINA 20071108 RJA5133. The other battery I bought and installed as an OEM replacement has the same data and is still working great. However, to answer your question, I can not verify that this data represents the date of manufacture. Hope this helps.
1270129
Doesn't seem to have a clear Manufacture date. This battery is almost identical to the original battery NA1BA04CS/4-B vs NA1B14DS/4-B (Not sure which is the original any more) if this helps, but its the only info that is different on the batteries. The two i have are so similar I can't tell which is the original. I even Googled it and not alot came up with identifying a positive manufacture date for this battery. sorry I couldn't answer your question, but I hope this gives u some benefit, anyway I think it is worth the buy considering its probably less expensive than at a battery store or a walmart type store if u can even find 1. My the odds forever be in your favor! Doesn't seem to have a clear Manufacture date. This battery is almost identical to the original battery NA1BA04CS/4-B vs NA1B14DS/4-B (Not sure which is the original any more) if this helps, but its the only info that is different on the batteries. The two i have are so similar I can't tell which is the original. I even Googled it and not alot came up with identifying a positive manufacture date for this battery. sorry I couldn't answer your question, but I hope this gives u some benefit, anyway I think it is worth the buy considering its probably less expensive than at a battery store or a... » Read More Doesn't seem to have a clear Manufacture date. This battery is almost identical to the original battery NA1BA04CS/4-B vs NA1B14DS/4-B (Not sure which is the original any more) if this helps, but its the only info that is different on the batteries. The two i have are so similar I can't tell which is the original. I even Googled it and not alot came up with identifying a positive manufacture date for this battery. sorry I couldn't answer your question, but I hope this gives u some benefit, anyway I think it is worth the buy considering its probably less expensive than at a battery store or a walmart type store if u can even find 1. My the odds forever be in your favor! « Show Less
469592
These should last for 5 years. if someone in 2014 said they were dated 2019, that means that they are being sold 50% expired. I want to buy batteries to store for long term emergency use. Is there a way to get these batteries right after they were manufactured?
176875
There is no manufacture date printed on the battery. I bought the camera and battery in Summer 2013.
787987
I could not find a date on either the battery or the package. The package states a two year warranty without specifying a reference. The batteries do have what appears to be a lot number pressed into the paper wrap.
1446204
I was unable locate expiration date, only manufacture date is on each battery.
1629519
They are what they say, they last just as long as average battery but cheaper and with a long shelf life. Mine which I got last yr have a shelf life till 2015. I bought several.
1467816
Mostly Chinese characters on the housing. I have long ago tossed the packaging if that had the date. I did find an 8 digit number in Arabic numerals....20090805. Whether that means it was produced August 5th of 2009 I don't know. I believe I've had this battery for the best part of two years with no issues.
1114209
my batteries indicate 11/2018. I find them most unsatisfactory and will not buy them again.