Recent content by konsole

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  1. K

    How about flashlights for kids for Christmas?

    I ended up going with the flashlights that Mark Anthony recommended, but thanks everyone for the suggestions.
  2. K

    How about flashlights for kids for Christmas?

    Thats a good idea. I was thinking about headlamps, and internal rechargeable batteries helps the decision. Do you find that these headlamps are fairly durable? I don't expect alot out of $15 headlamps, but I would want them to stand up to some abuse that the kids would give them. If the kids...
  3. K

    How about flashlights for kids for Christmas?

    Thats a good point that they likely will have alot of fun with the flashlights for a few days and then that will probably quickly disappear, but that isnt any different then most toys that kids get as presents. What you say StarHalo is also good points about the light not being too bright...
  4. K

    How about flashlights for kids for Christmas?

    Actually I take that back about the ~20 lumens low with a 35 hour runtime. Home Depots site shows 35 hours, but everywhere else shows the 300/70 lumen & 2/12 hour numbers. So either Home Depot has the "energy saver" runtime shown incorrectly or maybe its possible their is a 35 hour runtime low...
  5. K

    How about flashlights for kids for Christmas?

    If the flashlights where for me I would definately go either NiMH or lithium primaries, but no matter how many toys they get that use batteries I still cant convince their parents to use rechargeable batteries. I can't imagine how much they have spent on disposable batteries over the years...
  6. K

    How about flashlights for kids for Christmas?

    I floated this idea to a few family members and they at first thought it wasnt a good idea, but later in the conversation they started to get onboard with the idea a bit more. I think part of the reason for their initial disagreement was that their experience with flashlights is pretty much the...
  7. K

    Life expectancy of Lithium Ion camera battery (mine is 12 years old)

    I decided to take the time to test a few others that where charged and then sat for 1 month. The 2nd battery, after charging and sitting for 1 month, powered the camera for 701 pictures. This battery I didnt test how many pictures it powered the camera for when it was just off the charger, but...
  8. K

    Life expectancy of Lithium Ion camera battery (mine is 12 years old)

    Update on the test After 1 month of sitting after being charged, the battery provides 655 pictures. So right off the charger the battery provided 765 pictures, and after 1 month of sitting after charging it provided 655 pictures. Thats a loss of usable life of 14%. Right off the charger it...
  9. K

    Life expectancy of Lithium Ion camera battery (mine is 12 years old)

    I use to have some non low self discharge NiMH batteries, but I got rid of all of them because I felt that the lower capacity from LSD batteries was preferable to the higher capacity of the non-LSD batteries. If a 2500mah non-LSD battery is used even just 1st day after charging then it has...
  10. K

    Life expectancy of Lithium Ion camera battery (mine is 12 years old)

    etc, The batteries are flat shaped lithium ion. Today is 1 week from charging them up. 1 week ago their open circuit voltage was 4.13-4.16v (4.15v average) right off the charger, and now they are showing an open circuit voltage of 4.07-4.13v (4.10v average). The smallest drop in a week was...
  11. K

    Life expectancy of Lithium Ion camera battery (mine is 12 years old)

    Yes your right, the resting voltage over time is not the best indicator of a batteries health. Keeping track of the resting voltage over time is easy and really the only test I can do while waiting long enough to do another picture quantity test. If the resting voltage over time continues to...
  12. K

    Life expectancy of Lithium Ion camera battery (mine is 12 years old)

    In the first 24 hours the batteries lost about 1% of their total charge (4.15v down to about 4.10v). Battery University says lithium ion normally loses about 5% in the first 24 hours, and then about 2% per month after that. I'm guessing they arent going by the percentage drop of the total...
  13. K

    Life expectancy of Lithium Ion camera battery (mine is 12 years old)

    Thanks for the information so far. The battery seems to have no problem powering the camera for a long time when its used right off the charger. I assume that the only other thing to test to verify if the battery is still good or not is to test its self-discharge and see if it can hold onto...
  14. K

    Life expectancy of Lithium Ion camera battery (mine is 12 years old)

    I know this isnt about batteries for flashlights, but I figured it was close enough and this forum is frequently mentioned as the go-to place for battery knowledge. I have some digital cameras that are about 12 years old and they still have their original lithium ion rechargeable batteries...
  15. K

    Are these AA's low self discharge?

    Up All Night, oh ok so you have the same Duracells that are in my pictures, and when you charged them and then let them sit for 6 months they still have about 80% of their capacity left?
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