What is the average lifespan of this battery?
1831114
I find it to be about 1-2 years. Dont charge unless it is dead. Dont leave it charged over winter. If you keep it in 60-80 degree temperatures it will last longer. If you have this battery already cut off the wires and solder it onto the one in the link below. You will save 75%. 12V 5AH SLA 187 FASTON
248395
It is 18 months, just keep in mind that they will not replace the battery and will likely to offer a partial refund instead, if you have to receive a battery with awful performance, ask for a full refund or exchange, nothing less.... so far mine its working fine and ok performance... do not buy the 12cell...bulky, heavy and bad performance.
1089995
To me, it lasts at least as the original when it was new and maybe longer. It is really hard to tell without all parameters being equal in a head on replicated test which of course i have not done. Under my normal use I am getting through the day every day and still have about 50% of the charge left, where as my old battery that was greatly reduced in its ability to function correctly was often not getting me through the day and in some instances dying during the morning hours. In the older batteries younger life it did last all day and I would then again charge it overnight.
2180230
My husband seems to think that it's guaranteed for at least 3 years, but I'm really not sure and couldn't find anything related to a guarantee. On a separate note, the previous battery lasted for years and this one is working fine.
544464
I've been using mine for about 9 months, and it's still pretty good (way better than the factory battery that comes with the phone) by the end of the day I'm usually about 40%, but I am a very heavy user.I would recommend this battery
1885708
I received my battery last March (2012) and fully charged it up to use mainly for an emergency or when I travel. I had really forgotten about it until you asked this question. I just took it out of the drawer and found that it is still charged up to 99%. This surprised me as it has been just sitting there for 11 months now.
770175
My original just went bad.7 years old.thats better than most car batteries.
1417573
Well I can't comment on anything other than the fact that mine hasn't been any problem. The battery has been fine over the last couple years on multiple uses.
466257
I use these batteries in some burglar alarm sensors, and mark the date of installation. Most of the time (in at least half a dozen instances), I will get between 2 - 3.5 years of service on the Ultralife batteries. It's not 10 years, but it is far more than I would get from a standard alkaline.
1280279
Hi, I've had it for around a year and it is working great. I wouldn't know what is the complete average life of it though.
1148265
I am not sure on that..I have never had any problems with mine. I have had one besides this one for about7-8 years and it still holds a long charge.
1247571
I don't what the life of the battery is, but I have been running my Roomba on it for a couple months now.
824239
I don't know the life span of the battery. I still have the same one that came with it when I bought it back in December. Maybe someone who has had one of these longer could give you a better idea about the battery life.
1127169
Can't find it from the manual. Suppose the life span of the battery depends very much on usage of special features like the lamp and altimeter. Otherwise, I would expect two years the minimum acceptable life span.
2050060
Its a pretty long time. I charge it occasionally, but it has never died on me while I was using it.
1552099
there is 24 mo. warranty. don't think amazon is authorized dealer, heard you have to go thru the company that makes the battery. I haven't had any problems with battery either.
57840
From my experience, the life expectancy is about 2 years. The only reason I keep buying these batteries is because I have several pieces of equipment that uses this battery and I don't want to just throw them away. I have about 4 of these batteries and i keep one in the charger most of the time. I have thrown away about 3 of them in the last 5 years. The battery will do well for about a year and then it will lose it's charge sitting on the shelf. I'm guessing these batteries that we are buying are several years old when we receive them. Sorry to tell you this.