How to Calibrate laptop battery
After using for months, the battery get weak and cant fully discharge. Also in this situation the laptop battery’s 76% even less in work.Now we need to Calibrate laptop battery. I found a note about recondition laptop battery from HP manufacturer’s handbook. Surprisingly, it offered some really helpful laptop battery calibration and maintenance tips, which I’d like to share with you:
Calibrating a Battery Pack
When to Calibrate laptop battery
Even if a battery pack is heavily used, it should not be necessary to calibrate it more than once a month. It is not necessary to calibrate a new laptop battery pack before first use. However, make sure that the battery pack is fully charged, especially if it is the only power source.
Calibrate laptop battery pack under the following conditions:
? When the battery status display seems inaccurate.
? When you observe a significant change in normal batteryrun time.
? When the battery pack has not been used for one monthor more.
How to Calibrate laptop battery
To Calibrate laptop battery pack, you must fully charge, fullydischarge, and then fully recharge the battery pack.
Charging the Battery Pack
Fully charge the battery pack when the notebook is in use. To charge the battery pack:
1. Insert the battery pack into the notebook.
2. Connect the notebook to external power through an AC adapter. (The battery light turns on.)
The battery light turns off when the Macbook Pro 13″ battery pack is fully charged.
Discharging the Battery Pack
Disabling Hibernation
To fully discharge the battery pack, disable Hibernation temporarily.
To disable Hibernation:
? Select the Power Meter icon on the taskbar or access Power Options > Hibernate, and clear the Enable Hibernate support check box.
Discharging the inspiron 1501 Battery Pack
After the battery light turns off, which indicates that the battery pack is fully charged, begin discharging the battery pack.
- To fully discharge the battery pack:
- Select the Power Meter icon on the taskbar, or select Start > Control Panel > Performance and Maintenance > Power Options > Power Schemes.
- Write down the 3 settings in the Plugged In column and the
- settings in the Running on Batteries column, so you can reset them after calibration.
- Select the drop-down lists and set all 6 options in both columns to Never.
- Select the OK button.
- Disconnect the notebook from the external power source, but do not turn off the notebook.
- Run the notebook on battery power until the battery pack is fully discharged. The battery light begins to blink when the battery pack has discharged to a low-battery condition. When the battery pack is fully discharged, the power/Standby light turns off and the notebook shuts down.
- Recharging the inspiron 6000 Battery Pack
- Connect the notebook to external power and keep the notebook connected until the battery pack is fully recharged and the battery light turns off.
- Select the Power Meter icon on the taskbar or select Start > Control Panel > Performance and Maintenance > PowerOptions > Power Schemes.
- Reenter the 3 settings you wrote down for the 3 options in the Plugged In column and for the 3 options in the Running on Batteries column.
- Select the OK button.
?You can use the notebook while the battery pack is recharging, but the battery pack will charge faster if the notebook is turned off.
Now you already Calibrate laptop battery
The article is from : http://www.eastwoodzhao.com/maintaining-and-calibrating-a-laptop-battery-pack/
10/04/2009 at 7:59 am Permalink
hmm.. luv it
14/08/2009 at 12:59 am Permalink
Hi, my dell e1505 battery status has five lights come on when I test the battery which I presummed means it’s fully charged but when I install it in the laptop it doesn’t recognize that there is a battery installed? It doesn’t show battery percentages or that there is even a battery installed? Plus when I unplug the power adapter and run the laptop on battery power it only runs for about a minute? Anyone have any Ideas on what is going on? thanks
18/08/2009 at 3:18 am Permalink
for David Nuncio>
Update your Bios and then the batery will recharge and the laptop will recognize the batery… this is a bug of dell bios for all dell computer after one year of live..
Regards
Metis
10/09/2009 at 6:49 am Permalink
The battery of my compaq Evo N610c laptop does not charge at all and it can not work without an external power supply, how do i caliberate this battery? is it possible? any comment
29/09/2009 at 10:05 am Permalink
Generally I do not post on blogs, but I would like to say that this post really forced me to do so, Excellent post!
14/10/2009 at 7:18 am Permalink
calibrating your laptop battery is well underrated - it makes so much difference to my macbook battery life.
19/10/2009 at 2:26 am Permalink
Yes the apple battery calibration is a little different. you can search apple calibrate in my blog : http://www.laptops-battery.co.uk/blog/improving-apple-notebook-by-calibrating-your-battery/#content
24/11/2009 at 7:05 pm Permalink
..] http://www.laptops-battery.co.uk is another useful source on this topic,..]