The cause of over-discharge of lithium-ion battery and the correct use must be

1-1 Charging current: The charging current should not be higher than the maximum charging current specified in the specification (0.5~1.0C or less in general environment). Charging with a current higher than the recommended current will probably cause the battery's charging and discharging functions and machine functions And safety function problems, and may cause fever or leakage. At present, the 5C current rechargeable aeromodelling batteries on the market are recommended not to use 5C charging frequently, so as not to affect the battery life. 1-2 Charging voltage: The charging voltage shall not be higher than the specified limit voltage (4.2V/single battery), 4.25V is the highest limit of the charging voltage for each cell. (It is strictly forbidden to recycle the direct charge, otherwise it may cause the battery to be overcharged, and the user will assume the effect of using the battery incorrectly). 1-3 Charging temperature: The battery must be charged within the temperature range specified in the product specification, otherwise the battery is easily damaged. When it is discovered that the external temperature of the battery is abnormal (referring to the external temperature of the battery is 50C higher), the charging should be stopped immediately. 1-4 Reverse charging: correctly connect the positive and negative poles of the battery, and reverse charging is strictly prohibited. If the positive and negative poles are connected reversely, the battery cannot be charged. Reverse charging will crush the battery and even cause fever, leakage, or fire. Reasons for over-discharge of lithium-ion batteries and essentials for proper use 2. Discharge 2-1 discharge current: The discharge current should not exceed the maximum discharge current specified in the specification (approval). Exhaustion of excessive electricity will cause a sharp decrease in capacity and lead to the battery Overheating expansion. 2-2 Discharge temperature: The battery must be discharged within the working temperature range specified in the specification. When the external temperature of the battery is higher than 70C, temporarily stop using it until the battery cools to room temperature. 2-3 Over-discharge: Over-discharge will cause damage to the battery. During discharge, the voltage of the single battery must not be lower than 3.6V. 3. The storage battery should be stored in a cool place. When storing the battery for a long time (up to 3 months), it is recommended to store the battery in a temperature of 10-25C and a low temperature without corrosive gas. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.