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    Battery power-on issue

    Discussion in 'Fujitsu' started by FlyFly, Sep 29, 2013.

  1. FlyFly

    FlyFly Newbie

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    Hi all,

    I have an unusual problem with my beloved Lifebook:
    Spec: T4220 W7 Dual core 2.4Hz 4GB 120GB Samsung Extreme SSD, using two x batteries in it. The main battery and one in the dvd port. The batteries are not the issue here as they have both been tested. The charger is not an issue as it charges correctly and outputs the correct power. I am at my wits end as I have gone so far as to change the internal CMOS battery and still have the following issue.

    The issue: I press the Power button on battery power - the laptop takes literally hours to turn on - no display, no fan noise, no display on the mini LCD display - absolutely nothing happens for hours and then all of a sudden then power light comes on and it's ready to go (at the bios password screen). This happens with both batteries fully charged and working (tested). If I plug in the A/C power (with or without batteries), the laptop instantly turns on and reaches the bios password screen.
    After the laptop has been running for say, 30 minutes, when i turn it off and disconnect the A/C power, and then press the power button on batteries it starts immediately. But, after say half an hour of it being turned off...pressing the power button again is ineffective, or takes hours!
    This is very annoying as it can only be used on A/C power right now.
    The laptop runs fine on either of the two batteries and/or A/C power. I have recently replaced the internal fan and cleaned inside and reapplied quality thermal paste to the heat sink. It's not an overheating issue. I also went into the Power options in Windows and bios to ensure they were not the cause.

    I'm wondering if the replacement CMOS battery sounds like the culprit, and I should try and replace it again? I have tried removing both batteries, holding down the power button for 30 seconds,and re-seating the ram.
    With my limited knowledge I can only pin it down to the CMOS battery or possibly some strange issue with the power button itself, or worst of all a motherboard issue.

    I'd be really grateful for your thoughts and feedback :) on this as it is particularly annoying!

    Kind Regards,

    FF :confused:
     
    FlyFly, Sep 29, 2013
    #1