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Discussion in 'Electronic Basics' started by Guest, Feb 15, 2004.

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  1. Guest

    Guest Guest

    At last count, I have some dozen items in the house
    that use AA batterys.

    I usually test 'em by setting my ( analog ) VOM to 500ma
    then seeing how much the battery swings the needle.
    The battery is "good" if it still puts out 100ma.

    It occurs to me there should be a smaller,
    easier tester for AA batterys.

    Shouldn't need more than a LED, resistor, maybe a zener ??
    ( I'd like a <go> <no-go> indication )

    What is the criteria for a "good" AA battery ?
    1 volt out @ 100ma load ??

  2. Rich Webb

    Rich Webb Guest

    Radio Shack has a little tester (cat # 22-093 if they still use that
    part number series (mine is ancient)). It's basically what you already
    have -- an ammeter with a load resistor -- but it's handy, pretty
    inexpensive, and survives years in the "miscellaneous drawer."
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