can last how long these batteries stored before use?
1141287
they will last quite a while stored but in a device thats not even on they will start to diminish
512125
Not long, 2 or 3 months at the VERY longest. This is a trait of the NiMH batteries, NOT the brand. Personally, I would top-off any battery I was planing to use during an electricity free vacation, no earlier than a week beforehand, in order to have the most juice on hand when you need it. This is from my personal experience with a wide selection of brands and a wide variety of battery ages. Everready, on the other hand, claims that NiMH batteries in general will loose 50% of their charge in six months. I expect this may be the case under the very best laboratory, tempature and humidity controlled conditions. Not under normal conditions, like your camera case, electronics drawer, or your battery shoe box. Now... While I've never seen a STORED NiMH battery hold a charge that long, I HAVE found that using them in something that draws a small, but constant current, will give you a MUCH longer shelf-life than charging them and then storing them. Depending on what they are in, I've seen them last up to a year or longer.
1622218
Really couldn't say - I use these infrequently. I will use them nightly for a week or two, then turn them off. Only use them on dark winter evenings. Still using the batteries from last year, therefore. So - I will hazard a guess that they last a long time, maybe several months if not used daily.
672908
Greetings. Theoretically speaking, the batteries can last 100-120 hours. But it will also be affected by the battery type and usage. Thanks for your question.
916320
I don't think so, but the batteries have lasted for about 5 months so far. Also, batteries are far safer...
2201957
They should theoretically last longer. They have no safety issues that I know of. I've used them as backup batteries. The key spec is the voltage, which is the same as the Sony original, so it is compatible.
396217
Depends how much you use it.I only use mine sparingly and the batteries have lasted for months. Use lithium batteries and they'll probably last a year.
1928349
I am getting about 10-12 minutes per battery, but I charge them and then they sit for a week. You may get more time if you charge the batteries 12-24 hours before using them. Also keep them in the house if you live in a hot climate. Storage temperature may affect battery life. B&D; also claims the batteries reach full potential after 5-6 charges, but there is no empirical evidence of that.
1885707
As other respondents have noted, Without getting too technical rechargeable batteries have a unspecified amount of parasitic loss depending on battery chemistry type and overall capacity.In this case the extremely large capacity of this battery will allow it store a sizable amount of energy even after a period as long as 6 months. Keep in mind that batteries like a room temperature 74 degrees Fahrenheit plus or minus a few degrees . So try and keep them in a nice cool area with plenty of fresh moving air and a very low humidity
448835
not sure. i kept them for a few months before use and they still worked fine. it seems to me that they should last for a pretty long time
648151
We have ordered those batteries several times and have had no problems. They seem to last 8-10 days.
1008507
They last quite a while. I mainly use them for my son's wireless remote for his Xbox 360, he plays everyday, somedays he plays allday and on average we usually have to recharge them every 3-4 months. I found them to be better than an OEM battery we've had.
53995
I am not qualified to say how long the batteries will last based on your description but would assume based on my past experience that they will have a fairly long life compared to other style batteries. Unfortunately they are not rechargeable.
984998
Yes as long as they are 12 volt batteries or hooked up in serial or parallel to make 12 volts. How long they last will depend on the load and the amp hour/reserve capacity of the batteries.
2145333
That's going to depend on the quality if your batteries.. I would guess you should get atleast 3 hours and that's cheap batteries.
524016
They last very long, I bought this in July 2013, and I just recharged the D batteries at the beginning of December 2013. The batteries weren't even drained, I just wanted to make sure it wouldn't die before I went on vacation.
1202669
Tough to answer. Length of time in use and volume will impact batteries. I often use it 4 hours a day and they last about two weeks.