Hello, As i was working on, suddenly my laptop was shut down without any indications. and i tried to start it but it did not. after plugging in the battery charger it started. After that if i remove the charger then laptop will getting shut down. Laptop is working only when the power cord plugged in. If i remove the power cord it goes shut down. It is showing that "Plugged in, Not Charging".. Kindly provide me a solution. I have brought this laptop 4 months back. Model is Acer Aspire 3810T

Remove main battery and run the laptop, if it continues to work without shutting down that is a indicator the battery needs to be replaced.

your fan in your computer maybe shot or it might be set on hibernation mode

Compaq's are famous for over-heating, if you didn't have a cooling pad under the laptop it may have burned up some components, or it could just need time for the components to cool.

Your battery is probably completely discharged. This can prevent the laptop from starting even WITH the power plugged in. You might try removing the battery, then plug in the AC power adapter. Push the power button and HOLD IT down for 30 seconds (your laptop may or may not start up. If it starts, then shut it down normally.)
Replace the battery. With the AC still plugged in, repeat the start proceedure above. Leave the laptop on until the battery is fully charged. If this doesn't work, then your battery may be bad (this can happen all at once) or worse, your charging system isn't working (less likely.) Your power adapter could also be bad - is the green light on when it's plugged in?

You may have to repeat the proceedure a few times before it works as the battery needs to show a little charge before it will start.

Once started, press F2 while on the dell logo to go to the setup screen. Select the power options. and you should see if the battery is detected. If battery is detected, it should say "charging".

If none of this works, call Dell technical support 800 822-8965 for further assistance

Hello there!

You have to check your battery meter. Then try to remove the battery and plug-in your laptop directly to adapter without the battery. Just to make sure if its going to start up when you power up your system using your adapter.

If you need further assistance, please let me know.

Regards,
fossildude

“My Toshiba laptop suddenly shuts down by itself without any warning. Sometimes it works fine for hours, sometimes it shuts down in 10-15 minutes.” This complaint we hear from our customers over and over again. About 15-20% of all Toshiba laptops we get for repair, suffer from an overheating problem. Yep, OVERHEATING!
This is one of the most common problems with Toshiba laptops we deal with.
Indications of laptop overheating problem:

1. The keyboard and the bottom of your laptop are very hot when the laptop is working.
2. The CPU fans are working all the time at maximum rotation speed and operate much louder than before.
3. The laptop suddenly shuts down by itself without warning. When it just started, the laptop was shutting down after 1-2 hours and how it shuts down after 5-10 minutes of operation.
4. The laptop works fine when it runs idle, but shuts down as soon as you start using any memory demanding applications (DVD player, image editing software, video editing software, etc.).

Solution:
If the CPU heatsink is not clogged with dust and lint completely, you can use canned air and just blow it inside the laptop through the openings on the bottom and on the sides. It’s nice as a precaution measure, but it might not work if your laptop already has a problem and the heatsink is completely clogged.

1. Open the laptop case, so you can access the CPU fan and the heatsink. In some cases you can access the heatsink through the latch on the bottom of the laptop. Sometimes (for example Toshiba Satellite A70/A75) you have to open the laptop case all the way down.
2. Carefully disconnect the fan cables on the system board and remove the fan. If the fan makes unusual sound when it spins (grinding sound), I would recommend to replace the fan.
3. Clean the fan and the heatsink with compressed air.
4. I would also recommend removing old thermal grease from the CPU and applying new grease for better heat conductivity.

“My Toshiba laptop suddenly shuts down by itself without any warning. Sometimes it works fine for hours, sometimes it shuts down in 10-15 minutes.” This complaint we hear from our customers over and over again. About 15-20% of all Toshiba laptops we get for repair, suffer from an overheating problem. Yep, OVERHEATING!
This is one of the most common problems with Toshiba laptops we deal with.
Indications of laptop overheating problem:

1. The keyboard and the bottom of your laptop are very hot when the laptop is working.
2. The CPU fans are working all the time at maximum rotation speed and operate much louder than before.
3. The laptop suddenly shuts down by itself without warning. When it just started, the laptop was shutting down after 1-2 hours and how it shuts down after 5-10 minutes of operation.
4. The laptop works fine when it runs idle, but shuts down as soon as you start using any memory demanding applications (DVD player, image editing software, video editing software, etc.).

Solution:
If the CPU heatsink is not clogged with dust and lint completely, you can use canned air and just blow it inside the laptop through the openings on the bottom and on the sides. It’s nice as a precaution measure, but it might not work if your laptop already has a problem and the heatsink is completely clogged.

1. Open the laptop case, so you can access the CPU fan and the heatsink. In some cases you can access the heatsink through the latch on the bottom of the laptop. Sometimes you have to open the laptop case all the way down.
2. Carefully disconnect the fan cables on the system board and remove the fan. If the fan makes unusual sound when it spins (grinding sound), I would recommend to replace the fan.
3. Clean the fan and the heatsink with compressed air.
4. I would also recommend removing old thermal grease from the CPU and applying new grease for better heat conductivity.

either plug in the back of the laptop is shot or you need a new hardrive

Remove the battery and the power adapter, wait 5 minutes, plug in the power adapter and try turning it on, if it doesn't turn on, remove the power adapter, plug in the battery and try starting up again, if it still doesn't work plug in the power adapter, try starting up.

Is the power adapter working? does it have a green led on it that shows that its powered?

Problem cause:

Do diagnose your Laptop try to change your battery or adapter if you have some backup device