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Razor battery

Discussion in 'Electronic Basics' started by Ryan, Sep 27, 2003.

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  1. Ryan

    Ryan Guest

    I recently replaced some dying NiCad batteries with another set of AA
    NiCad batteries in my electric razor #1.

    I am disappointed with how long they last. I recharge in 1 week or
    less.


    I have razor #2, also with a dying battery. That one uses a proprietary
    looking 1.3 volt NiCad battery.

    I'm told that NiMH will yield a more pleasing result. I'm also told
    that charging systems rely on feedback from the batteries which they
    charge.

    If I mount two AA NiMH batteries in parallel in place of this single big
    battery, need I worry about their ability to charge well enough for a
    shaver? It doesn't seem to be much more than a transformer, some diodes
    and a capacitor or two. I'm not sure that it is a "smart" charger.

    Pictures of the item:

    http://www.geocities.com/newsgrouppictures/

    Thank You.

    -Ryan
     
  2. happyhobit

    happyhobit Guest

    Hi Ryan,

    A 'Smart' charger will charge a battery in an hour. A 'Dumb' one usually
    takes 10 of 12 hours.

    A 'Smart' charger for NiCads won't work on Ni-Mh batteries. It will ruin
    them

    A 'Dumb' charger will charge both.


    Batteries come in a lot of sizes,

    1/2 sub-c 26mm X 23mm
    4/5 sub-c 34mm X 23mm
    sub-c 43mm X 23mm

    Jay
     
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