Do you know how to use lithium-ion batteries correctly?

Lithium-ion batteries have the advantages of large capacity, large discharge current, no image effect, small size and light weight. However, they also have shortcomings such as fear of overcharging and overdischarging. Therefore, in addition to requiring charging and electrical equipment to have complete battery management, the battery You can also add a protective plate yourself. A well-developed lithium-ion battery protective plate should include maximum voltage limit, minimum voltage limit, charge and discharge current limit, short circuit protection, temperature protection, etc., among the commercially available lithium-ion batteries, the lowest There is also at least one current limit in the gear to improve the safety factor, because the regular 18650 lithium battery has a feature, there is a safety valve under the positive cap, and the internal gas in the extreme environment will open the safety valve to release the pressure. It is more peaceful (some cottages will press the safety valve back from the head or even seal it up and use it again, and the safety valve will lose its use). In actual use, we should only take precautions against overcharging and over-discharging lithium-ion batteries. This is an irreversible fatal injury to lithium-ion batteries. Don’t think that batteries with protective plates can rest assured. I once said: The protective plate is the last protection of the battery, just like a beautiful man who has been stripped, only the underwear is left, no matter how much he can care for. The domestic protection board will usually set the low voltage protection at about 2.5V (because this can delay the discharge time to the greatest extent), the limit low voltage of the lithium ion battery is 2.3V, and the safe low voltage should not be lower than 3V. It is used in many entrances. The low voltage protection of the lithium-ion battery will be set at 3.3-3.5V, so that it seems that a discharge time is slightly shorter, but it is of great benefit to the overall life. There is also the issue of discharge current. When the high-voltage is released, the low voltage will cause less damage than the low-voltage when the small current is released. The radio is a small-current electrical appliance, so it is best to look at the battery voltage during use. , Don’t over-discharge, just don’t use the protective board action. If the lithium battery is used to 0V, most of them will not be saved, and a few can be saved and their life will be lost. The practice of exhausting the battery actually comes from nickel-cadmium batteries, which means to prevent the image effect, but the image effect of lithium-ion batteries is much smaller than that of nickel-metal hydride batteries, not to mention nickel-cadmium, which can be ignored, so don’t Use old insights on new batteries. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the basic requirements for lithium-ion battery packaging?