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Thread: Got any AA batteries testers in the market?

  1. #1

    Default Got any AA batteries testers in the market?

    Is there any AA batteries testers? Care to recommend? Price/location of the product?
    Thanks.

  2. #2

    Default

    plenty of good and cheap multimeters in Sim Lim Tower. Even got those with 0.01 volt accuracy. Great for testing batteries and deciding which to discard.

  3. #3
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    but multimeters don't really tell much about remaining battery life right? they just tell the voltage and current the battery can still provide.

    NiMH, lithium-ion, NiCd and lithium batteries are good at holding up their voltage until the last bit of juice...

    only carbon zinc and alkaline batteries show voltage drops in its service life... i think

  4. #4
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    Quote Originally Posted by fuzzy
    but multimeters don't really tell much about remaining battery life right? they just tell the voltage and current the battery can still provide.

    NiMH, lithium-ion, NiCd and lithium batteries are good at holding up their voltage until the last bit of juice...

    only carbon zinc and alkaline batteries show voltage drops in its service life... i think
    NiMH and NiCd hold their voltage fairly constant at 1.2v until they're almost fully discharge where the voltage drops suddenly. A freshly charged cell will measure 1.4v for a while.

    Lithium cells actually gain voltage as they discharge.

    Your typical battery checker actually checks voltage or current. You'll probably need a more complex circuit (more exp.) to do a true check.

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