Laptop battery issues.

Discussion in 'PC Hardware' started by QuantumBug, May 27, 2012.

  1. QuantumBug

    QuantumBug MDL Developer

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    #1 QuantumBug, May 27, 2012
    Last edited: May 27, 2012
    First to cover:


    • The Laptop doesn't have the original charger, it's a generic one manufactured by Logik
    • The Laptop model is Sony VAIO VGN-NR38M
    • The Laptop's battery is the original battery

    The Problem:

    In simple terms, I think the battery is broken, Vista reports 'No battery is detected', even with the battery plugged in as soon as I remove the charger the Laptop instantly shuts off, and because I can't even get Vista to detect the battery I can't run any sort of diagnostic tools to see if it's holding any charge at all.

    Is there a good way to test the battery externally? As I refuse to buy a new one until I'm sure it's the problem. I have already carefully dismantled the Laptop and checked the contact pins on the motherboard and they're fine, I've also checked the A/C charging port to motherboard connector and that's also fine.

    Thanks, Dave.
     
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  2. QuantumBug

    QuantumBug MDL Developer

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  3. redroad

    redroad MDL Guru

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    yes , I believe so but not certain.. Does the Vaio support show driver?
     
  4. QuantumBug

    QuantumBug MDL Developer

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    The VAIO battery manager will not even execute, it's just stops working and Vista displays an APPCRASH report.

    I've checked inside again and everything looks absolutely fine. Are there any decent battery diagnostics programs that you know of?
     
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  5. QuantumBug

    QuantumBug MDL Developer

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  6. kj

    kj MDL Novice

    May 4, 2012
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    Why dont you try windows 7 or 8? Maybe it'll fix the problem, because Windows Vista has it's bugs i think, just my opinion. :D
     
  7. QuantumBug

    QuantumBug MDL Developer

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    #9 QuantumBug, May 27, 2012
    Last edited: May 27, 2012
    (OP)
    Ok, I dismantled the battery and a microcontroller that handles the charge flow has burned out.

    Problem solved, thanks everyone for your time :D
     
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  8. gabris[LT]

    gabris[LT] MDL Senior Member

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    #10 gabris[LT], May 28, 2012
    Last edited: May 28, 2012
    check fuse, if its alive then there's quite high risk that your lappys mainboard circuitry is damaged too, fuses in laptop batts usually has 3pins and are under glue.
    Well, I just want to know if controller managed to burn that fuse, if it not then communications between circuitry->battery(batt info ports -
    which tells voltage left/manufacturer info and so on) or power converter can be damaged. :) they're not burning from nothing... something was wrong already. ;) also to find source of the problem you can check cells, but it shouldn't be them...
    how to check if voltage converter is working - just check mobo batt connector with multimeter, usually for charge there are first few pins or 1st and last pins.
     
  9. QuantumBug

    QuantumBug MDL Developer

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    Mods lock this?
     
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