My R3000 when I click on AC symbol, comes up with Power meter window.It shows "current power source: AC Power and Total Battery power remaining : UnKnown
Under that there a symbol of Battery #1 and there is a red cross over it. The battery does not charge.
What can be the problem. The laptop is around 4 years old and was recently fixed for power jack problem by a tech.
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There are a few things to check. The LED lights can tell you a lot. This will tell you more about the battery:
On the taskbar, double-click the power cord icon or battery icon to open the Power Meter dialog box.
Note: If the power cord icon or battery icon does not appear on the taskbar, click the show hidden icons button.
Press Fn+STATUS to view the power status box, which opens
in the upper-left corner of the screen. The power status box shows the
current power source, the battery charge level, and the power management
Look at the battery charge indicator (if applicable).
LED green - Battery is fully charged.
LED orange - Battery is charging.
LED blinking red - Battery charge is very low.
LED solid red - Battery is malfunctioning.
Note: This LED only lights up when the notebook is connected to AC power.
Press the battery meter button on the battery. The battery meter lights indicate the percentage of battery charge remaining.
Wait for a Low Battery warning message to appear.
If your battery charge indicator displays what looks like an inaccurate charge, you may need to recalibrate the battery.
To recalibrate the battery as mentioned, try this:
Connect the AC adapter and then turn on the notebook.
As soon as it starts and you see a startup screen, press the F2 key.
In the BIOS Setup utility, use the TAB key to select the Advanced menu.
On the Advanced menu, select Battery Auto Learning, and then press the SPACEBAR to select Enabled.
Use the RIGHT ARROW key to select the Exit menu. On the Exit menu select Exit Saving Changes, and then press ENTER.
At the Setup Confirmation prompt, select Yes, and then press ENTER.
The battery recalibration process begins and a screen opens showing you the progress.
When the recalibration has finished, and the message "Press [Esc] key to exit" appears, press Esc. The battery charge indicator now displays an accurate battery charge.
Step 1: Windows 7 Laptop Battery not charging b> Careful management of battery charging and power consumption settings on your laptop computer is essential if you spend a lot of time away from home or the office. To stop your Microsoft Windows 7 laptop from running out of juice at a critical moment, you can change the battery and power settings for the device. Select the battery meter icon from the desktop toolbar to change the laptop's power plan. Click the battery meter icon in the notification area on the right-hand side of the computer's desktop taskbar. This launches the battery and power plan options dialog box. Find the battery status display at the top of the dialog box. This shows the remaining charge in the laptop battery, and indicates if the battery is currently plugged into a power supply and charging. Click the check-box beside the power plan option that best matches your current activities. Select "High Performance" if the laptop is connected to an external power supply and the battery is charging. Choose "Balanced" if you don't need to save power and you want Windows 7 to optimize the laptop's power settings. Select "Power Saver" if you need to run the laptop on only battery power for as long as possible. Click anywhere on the desktop screen to exit the battery and power plan options dialog box.
Sounds to me like you may have a problem with your laptop battery! It may be time for a replacement. You can find some on ebay that work fairly well; I have bought and used several different laptop batteries from ebay with success! Or, you can always purchase from Lenovo themselves.
eBay: Here is a link to batteries that will work with your laptop.
Lenovo: Black battery is here. White battery is here.
A little information before you decide to fork out some money:
Keep in mind the color of your laptop; don't buy a white battery if you have a black laptop and vice versa, unless you want that kind of look, of course.
1. Remove battery from the laptop.
2. Unplug the power cord from the computer.
3. Let the computer sit for a few min.
4. Leave battery out.
5. Connect power adapter to computer
6. Push power button to turn computer on.
7. If computer powers on shut down again, and put battery back in.
8. Push power button to turn computer back on
(at this point battery and power adapter should be connected to the computer)
If computer powers on with power adapter with the battery out. You are having a battery issue. You would want to look into replacing the battery.
If computer does not power on with just the power adapter. You are most likely having a power issue. Depending on how old the laptop is. You will either want to contact the manufacturer. Or take the computer to a computer repair shop, or consider replacing the laptop.
You can monitor remaining charge with the software (for example go to control panel on XP, power options, power meter and advanced and choose to display on taskbar).
The light however should be on, have you tries a different power supply?
If you know the current password, enter it, and then click "change password".
If you do not know the current password, you could be a thief, in possession of a stolen computer. Find the original sales-receipt, and telephone COMPAQ. Once they identify you as the owner, they can tell you how to delete the password.
Step 1 - Disable the Windows Power Management In Windows, right-click the Desktop and select Properties in the menu list. 2. Click the Screen Saver tab and then click the Power button. 3. Under Power schemes, select Always On in the drop down menu. 4. Under Settings for Always On power scheme, select Never in each of the drop down menus. 5. Click OK on the Power Options Properties window and then click OK on the Display Properties window. Step 2 - Fully charge the battery Connect the AC adapter to the notebook. Charge the battery until the Windows battery meter is at 100%. Step 3 - Fully discharge the battery Remove the AC adapter. Keep the notebook on until the battery has completely drained and the notebook automatically turns off. Connect the AC adapter to the notebook. Keep the AC adapter connected to the notebook until the battery has completely charged. Step 4 - Enable the Windows Power Management In Windows, right-click the Desktop and select Properties in the menu list. Click the Screen Saver tab and then click the Power button. Under Power schemes, select Portable/Laptop in the drop down menu. Click OK on the Power Options Properties window and then click OK on the Display Properties window.