Precautions to ensure the capacity and life of lithium batteries

Misunderstandings about the discharge of lithium batteries The more lithium batteries are discharged, the greater the loss. Tom Hartley, a professor of electrical engineering at Eklund University, said that he helped NASA extend the life of the battery. The more you charge the battery, the more it wears out. It is best to be in the range of the longest battery life. First of all, too high and too low power conditions have the greatest impact on the life of lithium batteries, and the number of charge and discharge cycles is not necessary. In fact, the rechargeable quantity on the label of most electrical appliances or batteries is based on 80% of the discharged capacity. Tests have shown that some laptop lithium batteries often exceed the standard voltage of 0.1 volts, rising from 4.1 volts to 4.2 volts, so the battery life will be halved, and then 0.1 volts, the life will be reduced to one-third of the original. Long-term low power or no power will increase the internal resistance of the battery to the movement of electrons, resulting in a smaller battery capacity. The National Aeronautics and Space Administration (NASA) has set the power consumption of the Hubble Space Telescope’s batteries to 10% of its capacity, so that they can charge and discharge 100,000 times without updating. Secondly, temperature has a great impact on the life of lithium batteries (this can be ignored in mobile phones and other small electronic devices). Under low temperature conditions, lithium batteries will burn as soon as they are turned on, while overheating will reduce battery capacity. Therefore, if the pen power is used for a long time and the external power supply will not take off the battery, the long-term high-temperature output of the laptop battery will be temporary, and more importantly, the battery will be at 100% power for a long time. Become obsolete. In summary, we can sum up the following points to note to ensure the capacity and life of lithium batteries: Most electronic batteries currently use lithium batteries. Since 1990, lithium batteries have been rapidly developed due to their excellent functions. The development of lithium batteries has been widely used in society, so lithium battery manufacturers have been carrying out the largest plans. You should not charge the lithium battery to 100%, let alone dead. In the case of promise, keep the battery power as close as possible to the half-full state, the smaller the charging and discharging range, the better; the general Chevrolet Volt design requires the battery to be charged 20% to 80%, while Apple’s pen-electric built-in Batteries (and other pens and electronic products) may use the same method to add battery charge and discharge cycles. When the device is powered by an external power source, do not use lithium batteries (especially laptop lithium batteries) for a long time. Even if your laptop cools down well, for a long period of time, 100% of its power is consumed by the lithium battery. 1. If you use an external power supply to power the laptop for a long time, perhaps the battery power has exceeded 80%, please remove the laptop battery immediately, generally do not charge the battery, charge to 80%; adjust the power supply options of the operating system, change The power alarm is adjusted to more than 20%. The normal battery power should not be less than 20%. 2. When small electronic devices such as mobile phones are fully charged, the power cord (including the charging USB interface) should be disconnected immediately, so that the battery will always be damaged; charge frequently, remember to charge, but do not need to charge the battery; 3. Don't let it The battery is exhausted, whether it is a laptop or a mobile phone; 4. If you want to travel, the battery is full, but please remember to charge the appliance at any time. For the life of the battery, you must not wait until the battery is dry. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.