Sony battery type G np bg1 - Pinout

Discussion in 'The Projects Forum' started by vol_, May 4, 2016.

  1. vol_

    Thread Starter Member

    Dec 2, 2015
    93
    3
    Here is a picture of the battery.

    I want to ask if the pin named (C) is used with the negative pin (-) for charging and (+) and (-) for operation. Is this so? If not what is going on with the battery pins?
     
  2. kubeek

    AAC Fanatic!

    Sep 20, 2005
    4,670
    804
    I think there will be a thermistor connected to C so that the charger knows the temperature of the battery.
     
  3. Dodgydave

    Distinguished Member

    Jun 22, 2012
    4,998
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    Internal thermistor for temperature monitoring during charge.
     
  4. vol_

    Thread Starter Member

    Dec 2, 2015
    93
    3
    Thanks guys..

    I want to build a charger with LM338 power regulator. Questions:

    1) The charger will be connected to (+) and (-) pins of the battery then?
    2) Could i overtake this thermistor and design the charger circuit as this thermistor does not exist?
     
  5. Dodgydave

    Distinguished Member

    Jun 22, 2012
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    Yes, the thermistor will be connected to C and possibly the bat neg,.
     
  6. vol_

    Thread Starter Member

    Dec 2, 2015
    93
    3
    So i can put the charger on (+) and (-) pins, neglecting the thermistor?
     
  7. Dodgydave

    Distinguished Member

    Jun 22, 2012
    4,998
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    Yes, but its best to monitor the battery voltage and temperature using a deadicated chip.
     
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