Hello, my laptop Acer (TravelMate 4152LMi) does not see that it is connected to the AC power and it run the battery until it is exhausted and now I cannot use it at all. When it still had the battery, the AC power indicator would disappear for no reason and appear only after the restart. Now, when I plug it into AC power, the green light of the charger is lit on, the power light of the laptop is lit for some seconds, then it blinks at regular intervals (half a second after some noise, probably, of the hard disk but I am not sure) and it does not charge.
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The solution to your problem lies in one of the following three areas:
1.) Your charger is faulty and is therefore not able to pass power to your laptops battery.
2.) The charging connector on the laptop has come loose from the contacts. Therefore a bad connection.
3.) Your battery is faulty.
I think possibility 2 is the most likely, although you will have to test possibility 3 by removing the battery and plugging in your charger and seeing if the laptop powers on.If it does power on then that rules out possibility 1 and 2 leaving a faulty battery.
If you need to buy a new laptop charger, the following to adapters are for your reference:
The older Acer computers stored their passwords in the CMOS, so all you have to do is remove the CMOS battery for 30 minutes. Here is the proper procedure to do it correctly.
Disconnect the ac power adapter and remove the laptop battery. Push the power button for 10 secinds to drain any residual power. Remove the CMOS (RTC) battery for approx. 30 minutes. Replace the CMOS battery and attach the AC power adapter only, leave the main laptop battery out for right now. Power the laptop up and let it post. If it still asks for a password, leave it blank and try hitting enter. If it accepts the blank entry and posts, then you can enter the BIOS and change your settings.
Below is the link for your service manual to assist you in the removal and tear down of components for your system.
There could be a problem with the battery. A fast check to determine whether you have a problem with the power
adapter, power cord or the laptop's battery is to turn off the laptop,
remove the battery, connect the power adapter, turn on the laptop &
see if it works. If the laptop works directly from the power adapter
with the battery removed, then the power adapter is good. In this case
we can suspect that the battery is defective & needs to be replaced.
First power drain your system take the battery out unplug the acadapter and then push the power button on the laptop and keep it pressed for 2 mins without connecting any power souce this will drain the static power from the syteme after few mins connect the battery first and then connect the ac adapter that should take care of the issue.
Did you double post this question? I think you might have a hardware profile set up not to turn off wireless when in plug mode. If that isn't the case look in the BIOS and see if there is a setting in there. You could also check the power settings on your laptop.
Try removing the power cable and battery, while these are removed press and hold the power button on the laptop for 30 seconds. this is called a hard reset, what it does is drains any residual power in the laptop. if this does not work, that means there is an issue with the motherboard. to have it sent in would cost about $398, give or take.