I have just received this laptop. I followed the instructions out of the box, installing the battery, then connecting the power. The battery started charging that first time, but after that, any time I tried reconnecting the A/C power supply, the laptop would not recognize the adapter and I am not able to charge my battery.
I have tried the following steps:
1. Shutting down the computer, removing the battery, and starting the computer from the A/C power supply.
The computer will not recognize the A/C power supply to turn on the computer.
2. Updating all the power management drivers.
Everything was already installed properly.
3. Using the Lenovo Energy Management battery gauge.
I must have the A/C power supply plugged in to use it, but the computer still won't recognize it.
4. Held down the power button for 30-40 seconds then reset the BIOS to default settings.
No change
5. Tested my outlets and connections between my AC adapter cords.
Everything is working properly.
There is one way that I can get the computer to recognize the AC adapter, and that involves all of these steps shown below, but when I unplug the AC adapter I am right back to the beginning, and I have to redo the whole process. I have just received this laptop and I am quite sure that you shouldn't have to go through this process every time you want to recharge the battery, or use your computer while only powered by the AC adapter.
Steps I have to take to recharge my battery:
A. Disconnect the A/C power supply.
B. Shut down the computer.
C. Remove the battery
D. Connect the A/C power supply
E. Start the computer.
F. Uninstall all battery drivers that are labeled Microsoft ACPI Compliant Control Method
Battery (which come back every time).
G. Shut the computer down.
H. Disconnect the A/C power supply.
I. Insert the battery.
J. Insert the A/C power supply.
K. Start the computer.
That is the ONLY way I have gotten my computer to recognize the A/C power supply. I know the power supply is functional, but I have no idea why I have to go through all of those steps for the laptop to recognize it. I am still in the 30 day return period (if there is one), and it is under Lenovo warranty. Any help or suggestions would be appreciated.
Thanks,
Bryant