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    Has anyone changed internal cells on a Sony battery?

    Discussion in 'VAIO / Sony' started by ejaf, Apr 8, 2011.

  1. ejaf

    ejaf Newbie

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    I'm in the process of replacing the cells on a VGP-BPS9 battery, and had a quick question, if anyone else has experience on this.

    Some BMS chips are rendered inoperative if you disconnect the cells from the board. If anyone has tried this, do you know if this is the case with the eeprom that Sony's are using (the one here in question is an M37512 chip). Knowing this would help me avoid setting up a parallel connection with other batteries, before disconnecting the cells to be replaced.

    Thanks in advance....

    Eric
     
    ejaf, Apr 8, 2011
    #1
  2. Gracy123

    Gracy123 Agrees to disagree

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    would be interested to know too...
     
    Gracy123, Apr 8, 2011
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  3. ejaf

    ejaf Newbie

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    Guess no one has done this...I'll have to play it safe, then, and wire some old 18650s in parallel first.

    Thanks anyway for looking.

    Eric
     
    ejaf, Apr 9, 2011
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  4. ejaf

    ejaf Newbie

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    ejaf, Apr 11, 2011
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  5. ComputerCowboy

    ComputerCowboy Sony Fanboy

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    ComputerCowboy, Apr 11, 2011
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