• LainTrain@lemmy.dbzer0.com
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    23 days ago

    My dad used to just put them on his tongue for a power check. Not entirely sure how that worked. Personally I just use a multimeter.

    • Jay@lemmy.ca
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      23 days ago

      You can do that with the 9 volt batteries and feel how much “tingle” they have, but never heard of it working with aa batteries. Wouldn’t he have to stick the whole thing in his mouth to complete the circuit?