Laptop battery will lose their ability to hold a full charge when used for a long time. Maybe it is not possible to make a battery like new again, but it is possible to improve cell performance by reconditioning or calibrating some Laptop Battery packs.
Firstly, you should insert the battery on laptop. Plug the laptop in and allow the battery to fully charge. Restart the computer. Disable hibernation temporarily. In Windows XP for example, click “Start” in the task bar, and then click on “Control Panel,” and then “Power Options.” Select the “Hibernate” tab then uncheck “Enable Hibernation.” Click “OK” to save the settings.
Secondly, discharge the battery. In Windows XP for example, click on “Control Panel,” “Performance and Maintenance,” “Power Options,” and then “Power Schemes.” Make a note of the settings under the “Plugged In” and “Running on Batteries” columns so you can reset them later.
Finally, unplug the laptop, but do not turn it off. Run the laptop until the laptop battery is completely discharged and the laptop shuts down. Plug the laptop back in, allow it to fully charge again, and then restart the computer. Enable hibernation, enter your original performance settings in “Power Schemes”.
Following the tips above, you will use your laptop battery longer.
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