How to save aging laptop batteries

Overcharge and over discharge will cause permanent damage to the positive and negative poles of the lithium ion battery, which is also the battery life problem. But more importantly, if the charging process is interrupted by an accident, the internal chemistry will undergo complex changes, which are likely to have an impact on battery life. Therefore, deep discharge and charging is a good solution to protect laptop batteries. Many brand-name laptops, such as IBM's ThinkPad line, have dedicated discharge software. If your laptop doesn't happen to have dedicated discharge software, follow these steps. First, disable the screen saver. In Windows power management, set the power usage scheme to "on all the time", the alarm TAB to "low battery alert" to 10%, and the operation to "no operation". Then set the 'severe power shortage alert' to 3%, and 'wait,' while setting the screen to maximum brightness. Save all previous work data, and confirm that the notebook battery charge in 80% above, unplug the power and all external devices.

After the end of the discharge, the laptop will automatically shut down, and then plug in the power to charge the laptop, this process can be repeated 2 ~ 3 times. In fact, the purpose of this method is to let the battery continue small current discharge, and this discharge state in our daily use is impossible to achieve, the effect is basically the same as those dedicated discharge software. If there is no obvious effect at this time, then the battery is basically unable to recover, you can consider replacing the lithium ion battery pack inner core.

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