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Discussion in 'Tech Tips and Reviews' started by stevedann, Jan 23, 2002.

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  1. stevedann

    stevedann Thread Starter

    Aug 13, 2001
    Does anybody know why it is that lots of electronic toys and other devices forbid the use of rechargeable NiCad batteries? I understand that they only put out 1.2 V rather than the 1.5V from a non-rechargeable and that rechargeables may be damaged by being discharged below 1.0V but some instruction books suggest that damage may be caused to the device if they're used.
  2. esdxc37


    Nov 26, 2000
    try posting in battery forum not a computer forum???
  3. brianF


    Dec 2, 1999
    Good question, I made rechargeable nicad batteries for 13 years.
    After all that time, not sure.

    My first guess would be the current draw on devices is too much for a Nicad. Along with the lower operating voltage causing problems with voltage regulating circuits for devices.

    Next would be that you can actually drive a nicad into reverse polarity, making positive negative and vice versa.

    Third is that nicad have a caustic soloution internally and if worked too hard or a short occurs the battery will vent the soloution. Pretty hard on any metal it comes in contact with.
  4. deuce


    May 26, 2001
    I always wondered what kind of engineer you were... :D What company did you work for/and which one do you work for now... if you don't mind me asking. (I'm assuming you made those for work and not for fun in your basement... ;) :D :rolleyes: )
  5. gethedge


    Jan 21, 2002
    I think nicad dry cells are not as stable as non-rechargable, therefor bad for electronics.

    I could be wrong
  6. rds33


    Nov 19, 2001
    Nickel Metal-Hydride (Ni-MH) batteries work quite well in my Olympus digital camera. They can be recharged about 500 times and provide the high-drain power needed.

    Best of all, they don't have to be discharged before recharging. Their drawback is that their shelf life is poor. They lose about 3% of their power per day. I simply charge up a new set of four batteries at the beginning of each month. So far they've always lasted the entire month - typically 60 pictures.

    I use this brand: (Not affiliated with them in any way)


  7. cwolfe98


    Jul 11, 2001
    Nickel Metal-Hydride batteries work quite well, however, Lithium Ion batts and/or Lithium Polymer batts work much better. (newer technology.)

    Most cellphone manufactures are now using L-Ion and L-Poly batts nowadays.
    My cellphone batt is LIon and it usually lasts about 10 - 12 days in standby or 5 - 6 hours talk time.
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