Lithium Battery Life Is Affected By Too High And Too Low Charge

"The cleaner the lithium battery is discharged, the greater the battery loss will be. The fuller the battery is charged, the greater the battery loss will be. The lithium battery is in the middle of the power, so the battery life will be the longest." Said tomhartley, Professor of electronic engineering at Akron University in the United States.

Tomhartley said that too high and too low power conditions have an adverse impact on the life of lithium batteries. The number of rechargeable times marked on most selling appliances or batteries is based on 80% discharge. Experiments show that for some lithium-ion batteries of notebook computers, the battery voltage often exceeds the standard voltage by 0.1 V, that is, from 4.1 V to 4.2 V, the battery life will be halved, and if it is increased by 0.1 V, the service life will be reduced to 1/3 of the original; The long-term low or no power state will make the internal resistance of the battery to the movement of electrons more and more large, resulting in a smaller battery capacity. NASA has set the battery consumption of its Hubble Space Telescope at 10% of its total capacity to ensure that the battery can be recharged and discharged 100000 times without having to be renewed.

Secondly, temperature also has a great impact on the life of lithium batteries. The environment below the freezing point may cause the lithium battery to burn out at the moment when the electronic product is turned on, while the overheated environment will reduce the capacity of the battery. Therefore, if the notebook uses the external power supply for a long time without removing the battery, the battery will be in the high heat discharged from the notebook for a long time and will be scrapped soon.

From this, we can sum up the following precautions that can prolong the capacity and service life of lithium batteries.

1. If the laptop is powered by an external power supply for a long time, or the battery power has exceeded 80%, remove the battery immediately. It is not necessary to fully charge the battery at ordinary times. It can be charged to about 80%. Adjust the power option of the operating system, adjust the power alarm to more than 20%, and the minimum battery power at ordinary times shall not be less than 20%.

2. For small electronic devices such as mobile phones, the power cord (including the USB interface with charging function) should be disconnected immediately after charging, which will damage the battery. It should be charged frequently, but the battery does not have to be fully charged.

3. Never let the battery run out, whether it's a laptop or a mobile phone.

4. If you want to travel, you can fully charge the battery, but charge the appliance at any time when conditions permit.

5. Use a more intelligent and power-saving operating system.