what is the C and T on a battery?

Discussion in 'General Electronics Chat' started by dingo, Mar 19, 2011.

  1. dingo

    Thread Starter Member

    Mar 11, 2011
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  2. GetDeviceInfo

    Senior Member

    Jun 7, 2009
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    likely has to do with a thermistor that is placed within the cells for a high quality charger.
     
  3. dingo

    Thread Starter Member

    Mar 11, 2011
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    Oh. So do you have any idea on that "C"? My device seems to give me error messages everytime I block this connector.
     
  4. Jaguarjoe

    Active Member

    Apr 7, 2010
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    Is their a "C"enter tap on the batteries?
     
  5. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
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    T=temperature
    C=serial communication terminal
     
  6. dingo

    Thread Starter Member

    Mar 11, 2011
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    thanks mcgyvr. I tried searching for more information online but there are none.
    Do you know how they are connected? and how they are used?
     
  7. PackratKing

    Well-Known Member

    Jul 13, 2008
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    T, is likely a circuit inside, and used by the device to sample the temperature of the charging battery, to stop the charge and provide some kind of alarm if things get too hot.

    C , is likely the circuit in the device judging the accrued voltage charged to the battery, so it can stop the charging when complete.

    + & - is charger polarity.
     
    Last edited: Mar 20, 2011
  8. dingo

    Thread Starter Member

    Mar 11, 2011
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    Hi there PackratKing,

    That is some sweet info. The problem I have with my camera right now is that if I block the battery's C then the camera still turns on, but then gives me an error saying that i must use a correct type of battery. After 5 seconds it turns off. Do you know how the C is connecting from the inside of the battery? I don't need any type of charging so I would like to experiment.
     
  9. PackratKing

    Well-Known Member

    Jul 13, 2008
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    "" Do you know how the C is connecting from the inside of the battery? ""

    Nope.....never "autopsied" one of those. :D
     
  10. dingo

    Thread Starter Member

    Mar 11, 2011
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    hehehe. Yes I'm thinking about doing it today :)
     
  11. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
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    Why are you blocking the C terminal?
    Your camera is expecting the communications signal on that terminal to give battery information. Probably 1-wire serial data
     
  12. dingo

    Thread Starter Member

    Mar 11, 2011
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    I'm blocking the C terminal because I wanted to see what happens and what it is used for.

    Okay so i've open up the battery and there is a little circuit inside it take takes in a NEG and POS into the circuit. The Circuit then have Four Connectors OUT: +, T, -, C. I will post up the Circuit soon.
     
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