Question about IBM ThinkPad T30 2366 Notebook

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T30 2366 8GA After removing AC Adaptor battery icon shows Charging and working on AC


I have an IBM thinkpad T30 and when the laptop is NOT plugged
into the wall using the AC adaptor,
windows battery icon shows the laptop as still being on AC power.

Sometimes continuesly Display getting Dim an Bright means switching to battery and power i feeling.

Help me. It would be most appreciated. Thanks.

I did the follwing....


1.When working the system unplugged AC adaptor. it showing still Charging and working on AC.

2.Formated and installed fresh windows XP with Sp2

2.Battery backup is getting already 2.4hrs So i think no battery problem

3.I didn't upgraded the bios and Embedded controller..

4.Fully dissasambled and cleaned IO Board as well as mainboard..

Still problem Existing...

Help Me plz..........

Posted by on

  • Tech May 29, 2008

    sorry.....There is no switch ......



    What i found is ADP3806 is the charging IC in T30.. Near by that one Diode is burned and the code written on that is 25.

    I removed that but i don't know the value of that diode means voltage specifications .Anybody know the what is the value?

    Means code is 25 ...Value=???

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There is a switch in the plug end to the back of your comp its like a little swinging door that when you unplug out of back of comp this switch engages battery now if you unplug just from wall its going to see these 2 things the doors not shut but i have to keep working so it sets aside the plug still recognizing it of course but running off the battery trying to still find out why the powers not there but the plug is still plugged in and it will continually search until it reaches its falt point of dead battery
its like a battery backup for your system it gets unplug but wants to know where the power is

now in reference to the little swinging door i call it its a power over relay in your comp for some reason its not closing properly to allow battery to run by self
this is usually just a switch that needs adjusted in the motherboard configuration

Posted on May 26, 2008

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