What is the lifetime (average) of this lithium rechargeable battery?
1280278
I rarely use the calculator but the battery was installed months ago and shows 100% load
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.
1020929
The description on the back of my battery rates it as 7.4V 2200mAh. Li-On isn't mentioned -- assume it stands for lithium ion, which these are. Work great in my Core micr+wire gloves, now going on four years! Got new batteries a few months ago. Caveat: I can't get more than 2 hours out of batts without recharging, and usually a little less. I keep a second pair charged for longer periods. And, recharging fully usually takes about 4+ hours. Still the best thing I've found for my colder-than-normal hands during Colorado foothill and mountain days below about 30F. The gloves are even better fitting, more flexible, and sleeker than most outdoor activity gloves. The description on the back of my battery rates it as 7.4V 2200mAh. Li-On isn't mentioned -- assume it stands for lithium ion, which these are. Work great in my Core micr+wire gloves, now going on four years! Got new batteries a few months ago. Caveat: I can't get more than 2 hours out of batts without recharging, and usually a little less. I keep a second pair charged for longer periods. And, recharging fully usually takes about 4+ hours. Still the best thing I've found for my colder-than-normal hands during Colorado foothill and mountain days below about 30F. The gloves are even better... » Read More The description on the back of my battery rates it as 7.4V 2200mAh. Li-On isn't mentioned -- assume it stands for lithium ion, which these are. Work great in my Core micr+wire gloves, now going on four years! Got new batteries a few months ago. Caveat: I can't get more than 2 hours out of batts without recharging, and usually a little less. I keep a second pair charged for longer periods. And, recharging fully usually takes about 4+ hours. Still the best thing I've found for my colder-than-normal hands during Colorado foothill and mountain days below about 30F. The gloves are even better fitting, more flexible, and sleeker than most outdoor activity gloves. « Show Less
2095855
the lifespan is measured in charge and discharge cycles. these batteries are rated for 2000 cycles.
488302
lithium cell battery, approximately 4 to 6 hour lifespan, depending on what all you have running in background and depending on which model, series, and if you have the 500 HDD or the 1 TB and if yours comes with a SSD (Solid State Drive) .... I can run as long as nearly 8 hours with the 3 TB USB EXHDD Slims (2 TB and 1 TB) which takes the load off the system; there is an option for power saving mode as well So you can kill some Tasks that are not necessary if you are in a bad weather and has the need to communicate outbound such as in an emergency,. I personally plan on purchasing 2 more ION Lithium Cell Rechargeable battery cells and just simply use finger nail polish and mark them 1 and 2 since the blank one is original to the Dell - it is a good practice if you live in a notoriously known weather zoned area. In my humble opinion, rotation of cells and keeping them charged will pay for itself. This is a pretty fast recharging unit if it is plugged in. General rule of thumb here is: How often does your power go out? How frequent is your area prone to storms? I personally know some people who have as many as 5 to 7 back up cells and they get them all charged up before storms comes or before the storm season comes for their area is know to be out of power for as long as a week to 14 days or even longer. The key point is, family first, but before storms come it is a good idea to let your credit to store card financial institutions to be alerted ahead of time even Mortgages so it doesn't go against you. You would want to touch bases with someone in your family or two who can relay messages to others of your status like every other day. Checking the news and weather report for a short moment helps a lot here; but resist all temptations to contact friends or assign a friend (trusted) as one did, so that password was switched and any email news given to this person would be relayed to this person. Anything of vital importance, you would know it at this specific assigned private email account. Everyone else can wait.
402503
The lithium battery will hold a charge for up to 18months when not in use. No memory effect so charge away!
315148
I also agree with Andrew. I bought this battery and simply installed it and it has worked fine ever since (more than 3 months now). I went from about 6 hours per day of life to now about 12 under normal use.
1231743
I haven't had mine long enough to tell but anecdotal observations indicate that the batteries/unit seem to follow the "standard" Lithium discharge rate of 5-10% a month. Wikipedia and Google can lead you to more "in depth" analysis if you want......I find it helpful to just think of it as a big cell phone battery (can I leave my cell phone off for a month and turn it on etc). The key to storage is temperature (cooler is better then warm), you really start to digress into the more "in depth" stuff as soon as you ask the question :0 Sorry if that is not specific enough I tried to explain "it depends". Overall I have found the unit/device to be of high quality and am unsure as to what an $80 10400mah battery would offer over this one. There very well may be nuance's but for the average and above average user you won't be able to tell the difference.
1639513
Using it daily it seems to run for 2 to 3 weeks. Typical for lithium type rechargeable battery. I am impressed with battery performance.
466253
10 years is the *SHELF LIFE* (estimated). When used in something, it won't magically last 10 years unless that something has a very low current draw. Alkaline 9V batteries might have 550-650 mAh, and Lithium 9V batteries might be 1200-1300, so really you're talking about doubling the capacity, but with a longer shelf life. In other words, don't pay attention to just the shelf life or you'll be in for a shock when it only lasts twice as long in a smoke detector... just bad marketing there, or customers paying attention to the wrong metrics of comparison.
1861222
Hi Isaac, you could expect approximately 3.5 to 4 hours of life from the battery.
1192890
I don't know 'exactly' how long it lasts but I'm real pleased. I use both the rechargeable 18650 3.7v battery and 3 AAA batteries 4.5v. 3 AAA's are a bit brighter. Both types seem to last a month or more of frequent use. I just got back from a 2 month vacation and it did not run down while is was out of the country. Very bright and long lasting. That's my opinion.
442153
off the top of my head i dont have a number but the np-fv100 battery would out last my old battery by 1hr and a half with minutes to spare. its puts me at ease knowing my battery will last more than 50 minutes. Its large but its light.
1268495
I have charged the battery maybe 4 times now. I would say it lasts for a good 6-8 hours of on and being used time.
39009
Energizer claims this battery holds its power 8 years if unused (see www.energizer.com/batteries/Specialty/watch-electronic/Pages/coin-lithium-1632bp.aspx). Because 8 years is promised, my guess as an Electronics Engineer is that the maximum useable shelf life may be closer to 9 or even 10 years.
813494
For most battery manufacturers the "use by date" is when the battery will have lost 20% of it's initial charge just by sitting on the shelf. All batteries lose charge over time just from sitting. Most Lithium batteries have a 10 year shelf life. In Doreen's case her batteries have a "use by date" of Jan 2022, so they were probably made in Jan of 2012. Lithium batteries are considered serviceable with 80% of their charge remaining.
1200935
I am unable to determine the model of the battery, because it's soldered in place. This leads me to believe that the battery is rechargeable. Will probably keep time for between 2 and 4 years, that's my best guess.
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.