The date on this battery says 05/2011.. that's pretty old, how can I guarantee it will last the 3-4 years that they generally last?
1577505
I notice if you charge it off and then use it until the warning light comes in and then charge it while off
1577506
My experience with all these batteries Dell , HP etc is that they work at less than 50% of the original capacity after a year.
1577507
The battery I purchased had a manufactured date of 2013 on it and was new (unused) so I wasn't concerned. I wouldn't buy one older but that's just my opinion.
1838627
I bought one for my ATV in 2009 and replaced it in 2013. The life is about double that of a standard lead-acid battery.
1623098
I bought this battery a couple years ago, and it only last 2 months !!you should try to look for something else
92920
You are better off just getting a new one when needed because you have to be careful on how and where you store them. Best rule of thumb is to change them every 3 years with a fresh new battery.
240701
In my experience used as a backup for a house alarm system this type of battery has lasted for at least 3-4 years or more. I try to change it, though, in 2 to 3 years before it needs replacement.
1406427
I believe the item is meant to last at least 2 years. Besides free occasional battery change.
815327
Contact the seller. The battery ought to last at least a couple years even in heavy use and the seller may send you a replacement or at least sell you one at a big discount. If not there are a number of good sources for batteries on amazon. Look for a 4-5 star product from a 90%+ seller if possible.
1459001
Well, I purchased mine about 6 months ago and they are good until June 2021 which means they are guaranteed for 9 years. Hope that helps! Also, I would recommend buying from Amazon rather than a local store because you will get fresher batteries (higher turnover rate).
7081
I will check date on battery box and respond, the batteries are suppose to last ten years. My use of batteries are to power Fire and smoke detectors so I expect 120 months of performance.
1382196
Most likely the manufactured date since I don't think they would accurately be able to predict the exact expiration date of the battery. I think shelf life is about 10 years
1459003
They have a manufacture date of 2012/04 stamped on them and the use before date printed on the battery is Mar 2021. It seems to me they say 10 years but mine aren't allowed to lay on the shelf that long. I like them. I use them. And I reorder them. I prefer the Duracell.
714828
I bought two of these batteries last year for my camper and I checked the dates on them after seeing your question. they are brand new.
2004805
I don't expect to ever have to worry about the battery. These type of batteries last through thousands of charge cycles so if it fails in 10 years I will just buy a new one.
142062
Good luck getting a straight answer from the seller on this. I can tell you that I recently bought one of these and it was a really solid improvement over my old battery. Tough to compare because it's been 2.5 years since my original battery was new, but I don't think the new replacement is quite as good as the original when it was new.
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.
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.
307020
On the battery that I had bought here off of amazon I havent a clue as to what the expiration date is on it because I cannot remove it from my laptop. The original battery that came with my laptop when I bought it brand new lasted me almost 5 years.