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Stuck Batteries

Discussion in 'General X Camera Forum' started by boulevardier, Mar 20, 2018.

  1. runswithsizzers

    runswithsizzers Premium Member

    Mar 17, 2017
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    on the edge

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    You say many third party batteries do not have the NTC resistor, which suggests some do. Can you point to a source which has published data about which third party batteries have the NTC resistor and which do not?

    Is there a simple test I can perform at home with a basic multi-meter to see if my batteries have the NTC resistor or not?

    As for the cost, how much more does the NTC resistor cost compared to a standard resistor?
  2. mfk

    mfk Well-Known Member

    Dec 17, 2014
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    I only had a Patona in my hands. The Patona has a 10 kOhm resistor at the place of the NTC. (The NTC may cost aprox. 20 cents more)
    "Some" is mainly based on the german-forum where this topic was discussed several times.
    With a Multimeter you may measure the resistance at 20-25°C, then heat the battery up by 10°C and check if the resistance is lower than 10 kOhm.
    Sorry, I'm at the moment in a Cahersiveen Ireland and can say nothing about the NTC coefficient.
    Regars, Ueli

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