Having problems with your Lenovo 3000 N100 Notebook ?

My laptop lenovo 3000 N100 battery has a problem.. therefore i purchased a new battery but the problem with this battery is that when i use the battery it runs the laptop for 10 -15 mins and then with a click sound cuts of the battery supply. m i having aproblem with the battery or it is ainternal circuit problem.


Answers :

My Dell laptop has a power problem.
\015\012d600a.jpg?w=300&h=258
\015\012The Dell Precision M20 Battery\015\012 stops charging when I move the power cord on the DC adapter. \015\012When I start moving the cord left to right, the power LED light on the \015\012front goes on and off and the battery charge LED goes on and off too.
\015\012dell-precision-m20.jpg?w=300&h=225
\015\012I removed the precision m20 battery and\015\012 tested the laptop again. The laptop starts fine from the DC adapter \015\012when the battery is removed, but as soon as I start moving the power \015\012cord the laptop shuts off. It looks like the laptop looses power \015\012immediately.
\015\012If you have a problem like that, most likely it’s related either to \015\012the power adapter or the DC-IN power jack.
\015\012First of all, I tested the laptop \015\012power ac adapter with a multimeter. The power didn’t cut off no \015\012matter how badly I moved the cord. The power adapter output voltage was \015\01215.45VDC all the time. That means there is nothing wrong with the power \015\012adapter and most likely there is a problem with with the power socket \015\012inside the laptop.
\015\012Now I’m going to test the power socket inside the laptop.
\015\012In order to access the power socket I had to disassemble the laptop \015\012and remove the top cover assembly with the display.
\015\012You can find disassembly instructions for many HP, Dell, IBM, \015\012Lenovo, Sony and Toshiba laptops in these service manuals and guides.
\015\012In the laptop I was fixing (Tecra M2) the power jack is attached to a\015\012 DC-IN harness and this harness can be unplugged from the motherboard.
\015\012As you see, I removed the DC-IN harness from the motherboard, plugged\015\012 in the power adapter and tested continuity with my multimeter as it \015\012shown on the picture.
\015\012When the power cord is still, the voltage output is 15.45VDC, the \015\012same as on the plug.
\015\012But as soon as I start wiggling the plug inside the jack, the power \015\012cuts off and voltage goes to 0. It means, the power harness is bad.
\015\012The problem was fixed after I replaced the defective DC-IN harness \015\012with a new one.
\015\012In some laptops the power socket (DC jack) is soldered to the \015\012motherboard.
\015\012If the battery stops charging when you wiggle the power plug inside the \015\012jack, either you have a bad power adapter (test it with a voltmeter) or \015\012the power jack is broken or loose.
\015\012You cannot simply unplug the jack and replace it with another one. \015\012You’ll have to unsolder the old jack and solder a new one back on the \015\012motherboard as I described in this post.
\015\012If the power jack is not broken but loose (not making good contact \015\012with the motherboard) you can resolder the old jack without replacing it\015\012 with a new one.
\015\012If you want to buy a new one,you can see more information from http://www.udtek.com
Well if you got a new battery it would indicate an internal charger problem,, however, have you checked your power adapter? If this isn't charging then this could be the reason, can you check with a meter?
Repair Help & Product Troubleshooting for Lenovo 3000 N100 Notebook

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