Question about HP Pavilion ze4145 Notebook

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HP DV6647NR Notebook Battery

How long should I expect a fully charged battery to hold a charge when it is not in use? I recalibrated my battery, and turned the laptop off. After one hour, I turned it back on and it was already down to 70%.

This laptop is less than a year old and frankly has not been used much as it took me forever to get it to be able to vpn into my work and I just did not have the time to futz with it until recently.

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Try using the battery until it dies and THEN charge if fully. It might 'refresh' the battery.

Posted on Oct 08, 2008

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Gateway NV5378u lap top, brand new battery installed and status says 100% charged. When I unplug the computer it shuts off as if there is no battery. Could the new battery be defective?


There are a few things to check. The LED lights can tell you a lot. This will tell you more about the battery:
  1. 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.
  2. 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 mode.
  3. 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.
  4. Press the battery meter button on the battery. The battery meter lights indicate the percentage of battery charge remaining.
  5. 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:
  1. Connect the AC adapter and then turn on the notebook.
  2. As soon as it starts and you see a startup screen, press the F2 key.
  3. In the BIOS Setup utility, use the TAB key to select the Advanced menu.
  4. On the Advanced menu, select Battery Auto Learning, and then press the SPACEBAR to select Enabled.
  5. Use the RIGHT ARROW key to select the Exit menu. On the Exit menu select Exit Saving Changes, and then press ENTER.
  6. At the Setup Confirmation prompt, select Yes, and then press ENTER.
  7. The battery recalibration process begins and a screen opens showing you the progress.
  8. 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.

Hope this helps!!

Oct 20, 2013 | Computers & Internet

Tip

How to Recalibrate a battery


SYMPTOMS- Short discharges and recharges do not fully synchronize the battery's fuel gauge with the battery's state-of-charge. This can result in the amount of power available in one cycle being less than expected or the battery meter being inaccurate.
Under normal usage, batteries should be calibrated a minimum of once every 3 months. Your battery can be calibrated by following these steps:

I - Disable the Windows Power Management

1. 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.

II - Fully charge the battery

1. Connect the AC adapter to the notebook.
2. Charge the battery until the Windows battery meter is at 100%.

III - Fully discharge the battery

1. Remove the AC adapter.
2. Keep the notebook on until the battery has completely drained and the notebook automatically turns off.
3. Connect the AC adapter to the notebook.
4. Keep the AC adapter connected to the notebook until the battery has completely charged.

IV - Enable the Windows Power Management

1. 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 Portable/Laptop in the drop down menu.
4. Click OK on the Power Options Properties window and then click OK on the Display Properties window.


on May 11, 2010 | Computers & Internet

3 Answers

Battery has been charging to 100%. Suddenly would only charge to 76 percent. Now, after two weeks, will max at 62 percent. Computer is 1 year old. Can battery meter be recalibrated?


Pulled from Gateway's website:
Do not interrupt the battery recalibration process. If recalibration is interrupted, you must start the process over again.

  1. Close all open files and programs.
  2. Connect your notebook to AC power and allow the battery to completely charge.
  3. Disconnect the AC power and restart your notebook.Note: If the power cord plug.gif or battery baticon.gif icon does not appear on the taskbar, click the show hidden icons showhidden.gif button. If the icon still does not appear, verify thatAlways show icon on the taskbar is checked on the Power Options Properties Advanced tab.

  4. Completely discharge the battery by doing the following:

    1. From the desktop, right-click on the power icon, then select Adjust Power Properties.
    2. Click the Power Schemes tab.
    3. Click the arrow button to open the Power Schemes list, then click Always On.
    4. Click the Alarms tab.
    5. Click to remove the check mark from the Low battery alarm and Critical battery alarm checkboxes. Let the battery drain until your notebook automatically turns off.

  5. After the battery is completely drained, reconnect your notebook to AC power.
  6. Charge the battery completely until the yellow battery status indicator goes out.
  7. When you are ready to use your notebook again, do the following:

    1. From the desktop, right-click on the power icon, then select Adjust Power Properties.
    2. Click the Power Schemes tab.
    3. Click the arrow button to open the Power Schemes list, then click Always On.
    4. Click the Alarms tab.
    5. Click to select the Low battery alarm and Critical battery alarm check boxes.

Mar 11, 2011 | Gateway Netbook N450

2 Answers

I donot know what is wz my battery but it is show 100% but in real it is like 15% plus it is only stay like 15min while it is unplugged


Hello,

This is a sign that you need a new battery. If you can not get a new battery try calibrating the old one. Here's how:

1. Charge the batter to full. (I know you stated it is like 15% but charge it till it shows full.
2. Unplug the AC adapter and let the battery drain. (If your notebook shut down b/c of low battery, keep powering it on until it will not come on anymore.)
3. Once drained, charge it again to full power and repeat the process at number 2.
4. Finally, charge the battery again. This time it should be recalibrated to hold a full charge close to the factory setting.

Good Luck
C2Solutions

Feb 19, 2011 | HP Compaq nx7300 Notebook

3 Answers

My battery dies very quickly


If your notebook unexpectedly goes into Sleep mode while you are using it but the battery charge is not low, you may need to recalibrate your battery. You should also recalibrate the battery periodically to maintain the accuracy of the battery gauge. Follow these steps to recalibrate the battery.

  1. Connect your notebook to AC power and let the battery charge completely.
  2. Disconnect the AC power and restart your notebook.
  3. Completely discharge the battery.
  4. After the battery is completely drained, reconnect your notebook to AC power.
  5. Charge the battery completely until the battery status indicator turns blue.

Oct 28, 2010 | Gateway T-1625 Notebook

1 Answer

My asus x50gl is not charging, recalibrate it still not charging


since you have tried recalibrating the battery and it still does not charge this implies that the battery is dead.you can try getting a spare battery and charging it fully before using.

Jul 18, 2010 | ASUS Computers & Internet

1 Answer

Message says battery not fully charged but Icon says 100% charged


This machine is roughly 4 years and so the battery does not hold the charge like it used to. It's just suggesting that you should look into a replacement battery that will hold the charge longer than the current one which will give you more time to use the device.

May 06, 2010 | HP Pavilion dv6000z Notebook

1 Answer

New battery doesn't charge fully red light flashes


It means it's not an original battery, or your charger can't charge it. Try to use a recalibration software for your battery and if it doesn't work, buy a new one :d

Jan 28, 2010 | Dell Inspiron B130 Notebook

1 Answer

I have recently purchased a replacement battery for my HP zd8000 laptop. The problem is that the laptop is calibrated for the old battery and doesn't appear to even want to charge the new one. Any help...


You should first try to recalibrate the notebook and battery using the following steps: (this should be done every three months also as short charges and discharges really mess it up and will give you a false reading)

Step 1 - Disable 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 Always On in the drop down menu.
Under Settings for Always On power scheme, select Never in each of the drop down menus.
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.

Now...
If you go into Control Panel, Power Options, and select the Power Meter tab, what does it say?


If you are still having issues, then do the following and then go back through the recalibration process:

Try going into Control Panel, Administrative Tools, Computer Management then down to devices and there should be an entry for batteries. Select that and right click to select scan for hardware changes.

Jan 04, 2010 | HP Pavilion zd8000 Notebook

1 Answer

Not charging when it says charging


I was going to suggest a recalibrate might do this

with some machines run the battery to flat then fully charge at full charge shutdown and reboot windows.

With some machines the same thing is done as follows:
Enter the bios and disable the automatic shutdown for low battery. Disable the automatic shutdown for low battery in Windows. Run the laptop until it just dies from the battery going dead.
Charge the battery. Re-enable the automatic shutdowns.


And I believe some even have options in the Bios to recalibrate.

If this doesnt work then could be a voltage issue in the charger (is it universal with voltage settings?)
if it is this and no settings that could have been moved to wrong voltage etc, then maybe need testing and replacing.

Hope this helps

Jun 10, 2009 | Dell Inspiron 6400 Notebook

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