Battery always showing 100% remaining even if it's fully charged

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  1. Posts : 6
    Windows 7 Ultimate x64
       #1

    Battery always showing 100% remaining even if it's fully charged


    Hey guys!I've had this problem for awhile,but I didn't think it was serious.
    The battery icon never shows 'plugged in' when the AC is connected. It wouldn't be a problem, but when I try to install a driver it always requests the charging mode...and my windows 7 ultimate edition x64 does not recognise when i plug in the AC.Help,please!
    p.s: i've got a hp compaq presario laptop.
      My Computer


  2. Posts : 5,056
    Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86
       #2

    You can try running an sfc scan to fix corrupted system files.

    SFC /SCANNOW Command - System File Checker

    Or you could try alternative battery meters. E.g. theres one made by a forum member (Bagaria).

    Windows 7 Battery Bar by =Kishan-Bagaria on deviantART
      My Computer


  3. Posts : 6
    Windows 7 Ultimate x64
    Thread Starter
       #3

    not working.i scanned then i restored my system...nothing happened.
    i downloaded that battery bar,but when i try to install the BIOS drivers i get the same error,that i should plug in the AC.
      My Computer


  4. Posts : 5,056
    Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86
       #4

    What do you mean by "bios driver"? bios update?
      My Computer


  5. Posts : 6
    Windows 7 Ultimate x64
    Thread Starter
       #5

    bios update
      My Computer


  6. Posts : 5,056
    Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86
       #6

    All bios updating needs the computer to be running on AC power, thats normal. Its a safety precaution because if there is a power interruption or the computer enters into standby/hibernation while on battery power, its quite likely the motherboard will get bricked.

    Is this the first time you're updating the bios? Make sure you do it only if there is a specific benefit/ problem resolution from doing so and do be careful.
      My Computer


  7. Posts : 6
    Windows 7 Ultimate x64
    Thread Starter
       #7

    it's the first time i try to update my bios.the AC is plugged in,but the battery icon doesn't show that(it says 100% remaining). It's been like this for awhile,but I didn't think it was a problem, so I didn't try to fix it,until i realized i cannot update bios.
      My Computer


  8. Posts : 579
    Windows 7 64-bit Home
       #8

    yeah but why are you trying to update your bios?
      My Computer


  9. Posts : 6
    Windows 7 Ultimate x64
    Thread Starter
       #9

    Because there's an error and my laptop wouldn't recognise a mobile internet modem.
      My Computer


  10. Posts : 5,056
    Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86
       #10

    In other words, you get the message that AC is not connected when it actually is? Did you check whether the battery is actually getting charged, that is whether you are able to use it for the 2-3 hrs or whatever the battery usually provides? Your battery may be going bad or the AC adapter might be broken or the power-in jack may be faulty, swap these out with spare ones and check. Worst case it could be a hardware failure E.g. the mobo battery circuit may be faulty.

    BTW, postpone the bios update till you get this battery issue sorted out.
      My Computer


 
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