Laptop batteries are often not fully charged or even damaged when used for a long time, so you must pay attention to some tips when using them: no matter whether your notebook uses lithium or nickel metal hydride batteries, try to use up the battery as much as possible before charging (battery) less than 5%), which is the best way to avoid memory effects. In fact, lithium-ion batteries also have a certain memory effect, but they are much smaller than nickel-metal hydride batteries. However, it should be noted that when charging, try to avoid taking too long, and generally control it within 12 hours.
The life of the battery is not determined by the total usage time, but by the number of charge and discharge times. If the battery is always installed in the notebook and not removed, then even after the machine is turned off and the AC power is removed, the battery will not remain fully charged as imagined. Laptop batteries consume power even when the computer is turned off due to the control circuitry integrated into the battery. As soon as the AC power is connected, the battery will start charging. Whenever the power is turned on or off, the battery will be charged and discharged repeatedly, which will affect the battery life.
It is best to unplug the battery when using an external AC power supply, otherwise the battery will be heated for a long time and its life will be affected. If the battery is not used for a long time, please charge and discharge it at least once every two months to ensure its activity. There is also a problem that needs attention when keeping the battery. At present, if the lithium-ion batteries used in most notebooks are not used for a long time, they are prone to over-discharge and may no longer be able to be charged. To prevent over-discharging, store it half-charged in a cool, dry place, and recharge it to half-charged every six months.
In addition, factors that affect battery life include the temperature of the operating environment (recommended to use below 30°C), battery storage temperature, and the size of the vibration the battery is subjected to, etc. The battery will age after being used for a period of time. The specific performance is that the internal resistance becomes larger, and the voltage at both ends rises faster when charging, so it is easy to be judged as full by the charging control circuit, and the capacity naturally decreases. . Battery calibration is an effective way to deal with aging batteries, and a few notebooks will have dedicated battery calibration software.
If your laptop does not have dedicated discharge software, you can follow the steps below:
● Disable the screen saver;
●Set the power scheme to “always on” in Windows power management;
●In the alarm tab, set the “low battery alarm” to 10% and the action to “no action”;
●Set the “Severe Laptop Battery Shortage Alert” to 3%, and the operation to “Wait”;
●Turn the brightness of the screen to the highest level;
●Make sure to close all windows and save all previous work data;
●After confirming that the battery is charged above 80%, unplug the power supply and all external devices.
After the discharge is over, the notebook will automatically shut down, and then plug in the power supply to let the notebook charge. This process can be repeated 2 to 3 times. The purpose is to let the battery continue to discharge with a small current, and this discharge state is impossible in our daily use. Yes, the effect is basically the same as that of the special discharge software.