Battery charger doubts....

Discussion in 'Photography' started by J, Dec 29, 2011.

  1. J

    J Guest

    J, Dec 29, 2011
    #1
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  2. J

    philo Guest

    philo, Dec 29, 2011
    #2
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  3. J

    Pete A Guest

    Yes it is possible (I've done it myself in occasional "emergency"
    situations). The cautions in this newsgroup regarding the risks, and
    expertise required, when reviving sleeping Li-ion batteries apply to
    all batteries: don't _ever_ take the risk of doing things to batteries
    that the user is not supposed to do.

    All batteries are ridiculously cheap compared to the cost of serious
    injury resulting from their misuse.
     
    Pete A, Dec 29, 2011
    #3
  4. The advertised unit? Who knows.

    Alkaline: Charging reverses the chem process but creates heat.
    Fast charge = No. The battery will likely blow up.
    Very slow pulsed charge over hours / days = maybe.
    NiCad / lion / Nimh:
    If you can burn the dendrites out without badly
    over heating the battery, it can be recharged.
     
    Paul in Houston TX, Dec 30, 2011
    #4
  5. J

    J Guest

    Based upon the replies in this ng, I'm gonna give it a miss. Thanks.

    J
     
    J, Dec 30, 2011
    #5
  6. J

    Mort Guest

    Until it explodes and burns you plus ruining your camera.

    Several decades ago, there was an alkaline cell on the USA market that
    was supposed to be rechargeable, but it wasn't, and it soon disappeared
    from view.

    Do not ever use a cell or battery incorrectly; it is dangerous and
    expensive.

    Mort Linder
     
    Mort, Dec 30, 2011
    #6
  7. J

    Robert Coe Guest

    : On 2011-12-29 19:25:17 +0000, J said:
    :
    : > Just seen this ad for a battery charger, but having a problem believing
    : > what it says it does!
    : >
    : > http://www.dailyrecord.technologyin...tron-Alkaline-Battery-Recharger.html#LargePic
    : >
    : >
    : > I didn't think this was even possible...'is it?
    :
    : Yes it is possible (I've done it myself in occasional "emergency"
    : situations). The cautions in this newsgroup regarding the risks, and
    : expertise required, when reviving sleeping Li-ion batteries apply to
    : all batteries: don't _ever_ take the risk of doing things to batteries
    : that the user is not supposed to do.
    :
    : All batteries are ridiculously cheap compared to the cost of serious
    : injury resulting from their misuse.

    Seconded. Even you if position the charger to make sure you're out of the line
    of fire of a possible explosion, you could start a fire or make a toxic mess.
    Better to buy batteries the manufacturer admits are rechargeable.

    Bob
     
    Robert Coe, Dec 30, 2011
    #7
  8. J

    Robert Coe Guest

    : J wrote:
    : > Just seen this ad for a battery charger, but having a problem believing what
    : > it says it does!
    : >
    : > http://www.dailyrecord.technologyin...tron-Alkaline-Battery-Recharger.html#LargePic
    : >
    : > I didn't think this was even possible...'is it?
    : >
    : > J
    :
    : The advertised unit? Who knows.
    :
    : Alkaline: Charging reverses the chem process but creates heat.
    : Fast charge = No. The battery will likely blow up.
    : Very slow pulsed charge over hours / days = maybe.
    : NiCad / lion / Nimh:
    : If you can burn the dendrites out without badly
    : over heating the battery, it can be recharged.

    Even the best batteries come out of a high-speed charger too hot to touch. And
    the charger should have sense enough (apparently mine does) not to even try to
    charge batteries that might not be able to take it.

    Bob
     
    Robert Coe, Dec 30, 2011
    #8
  9. J

    ASCII Guest

    Second generation (low self discharge) nimmies like Sanyo 'eneloop'
    are a great replacement for standard alkies,
    especially when you lean on them heavily like a digital camera does.
     
    ASCII, Dec 30, 2011
    #9
  10. J

    PeterN Guest

    smart decision
     
    PeterN, Dec 31, 2011
    #10
  11. J

    NM5K Guest

    Recharging a alkie is quite safe if done properly..
    I've done it many times.
    But saying that, it's basically a waste of time. I've
    tried it doing it manually, and you can recharge one to
    a point.. But nothing compared to a new battery, and
    you will be limited to the amount of recharges you can
    get off one.. Each time is less and less capacity.
    Also.. I noticed that the batteries I did recharge tended
    to leak heavily after they sat unused for a while.
    So don't ever leave on in a piece of gear unless you like
    heavy corrosion.
    Anyway, I give recharging alkies a thumbs down overall..
    It can work in a pinch to add a bit more life, but you
    are much better off using actual rechargeable batteries.
     
    NM5K, Dec 31, 2011
    #11
  12. So something to do if you're in a last ditch attempt to protect the earth
    against a diabolical alien invasion but other than that not worth losing a
    pair of eyebrows over?
     
    Charles E. Hardwidge, Dec 31, 2011
    #12
  13. J

    NM5K Guest

    That's about it.. It would only be unsafe to recharge an alkie
    if you used too much current, and the battery got real hot.
    I've never had any problems using a slow charge. And I also
    monitor the batteries to make sure they don't get too hot.
    But I came to the conclusion that it wasn't worth the effort.
    You don't get near the performance of a fresh battery.
    I went through all this when using a trail cam that eats
    batteries fast. I was trying to get a bit more life from
    them.
    But in the end, I went to rechargeable SLA batteries. That
    was the best solution.
    But... that trail cam crapped out on me on Dec 23... @#$%..
    It seems to be kaput.. Won't even start up.
    I had been using it 24/7 the last two years as a security
    cam watching the house.
    So I guess I'm going to have to get off my ass and finish
    up the home brew cam I was building, but then got lazy and
    never totally finished.
     
    NM5K, Dec 31, 2011
    #13
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