If you find your battery doesn't fully charge, or runs down rapidly, you may benefit from a reset. Resetting things usually involves wiping out any customisations or any effects from usage and resetting the battery is no different. You don’t need special diagnostics or recovery software to reset your battery. The process is astonishingly simple. If your battery is particularly sluggish you may need to perform the reset several times. Each reset will increase the performance of your laptop battery.
Plug in your laptop to the power supply but keep it turned off. Check your battery monitor periodically until it is fully charged.
Unplug the power cable and keep the computer on. Make sure it doesn’t go to sleep or put up a screensaver because these actions will prolong the discharging process. Use applications like video streaming and Wi-Fi that will drain your battery faster. When your battery gets down to a 5 percent charge your operating system will probably give you a warning to save your work and turn the computer off. Ignore the warning.
Close down all applications running on the computer when the charge gets down to about 2 percent. The total loss of power to the computer won’t damage the operating system, but it might distress more complicated applications.
Let the computer completely die. This will be a sign that the battery is totally dead.
Plug the power cable back into your laptop and leave the battery to charge up without turning the computer on. You could perform this task overnight.
Turn the computer on and check your battery power. If your battery wasn’t charging fully before it should now perform better. If you get really lousy performance from your battery, repeat the process two or three more times.
Drain the battery once a month to prevent it from returning to poor performance. If the reset does not improve the performance of your battery, then it is completely unsalvageable. Throw it away and buy another.