Introduction to the correct use and maintenance of high-rate model airplane lithium-ion batteries

1. Overcharging is strictly prohibited. The phenomenon of overcharging is difficult to appear on matching dedicated chargers, because the current charger technology is more and more accurate and reasonable for detecting the full state of the battery. However, on some programmable chargers, if Setting the wrong parameters by mistake makes it easy to find overcharging. In addition, pay attention when charging the battery. Li-ion batteries have three specifications of 3.6V, 3.7V, and 3.85V. The charging parameters of 3.6V and 3.7V can be the same, but you must pay special attention to the high-voltage version of the 3.85V battery. When this type of high-voltage lithium-ion battery is charged, the full voltage is 4.35V. If the conventional 4.2V battery is charged to 4.35V, the battery is already seriously overcharged. The rate-type lithium-ion battery will become extremely ferocious if an abnormal reaction occurs after overcharge, such as a violent fire and explosion. 2. Use a dedicated charger. This charger can be a lithium ion or lithium polymer charger. The two are very close (output voltage 4.1~4.2), which will not damage the battery. 3. Pay attention to the charging temperature. The charging temperature of the aeromodelling battery should be kept at 0℃-45℃, because the temperature of the charging environment is too high, which will cause the temperature of the battery to rise, so when the battery surface temperature is found to be abnormal, the charging should be terminated immediately. 1. It is strictly forbidden to over-discharge. Ordinary lithium-ion batteries will damage the capacity when they are in use, while the over-discharge reaction of rate-type lithium-ion batteries will be more intense. Overdischarge can directly swell or scrap high-rate lithium-ion batteries, and the capacity loss is more serious than ordinary lithium-ion batteries. The discharge curve of the battery shows that at the beginning of the discharge, the voltage drops relatively quickly, but when the battery is discharged between 3.9V and 3.7V, the voltage drops not fast. But once it drops to 3.7V, the voltage drop will speed up. Poor control will lead to over-discharge, which can damage the battery in the slightest, and cause a bomber if the voltage is too low. 2. Do not force the flight if the temperature is too high or too low. To preheat and keep warm, this principle is ignored by many flying friends. In addition, the battery needs to be kept warm. Before taking off, the battery should be stored in a warm environment, such as in the house, in the car, in the incubator. 3. Quickly install the battery when taking off and perform the flight mission. When flying at low temperatures, try to shorten the time to half of normal temperature to ensure safe flight. After use 1. When flying the model airplane, remove the battery charging model in time. Do not connect the battery to the model airplane for a long time. In addition to the damage to the aircraft model, it may also cause the over-discharge of the lithium-ion battery. 2. When the battery is not used for a period of time in the future, charge the battery to about 3.85V and save it. If the battery's special charger does not have the storage mode charging function, you can use the lithium iron phosphate battery charger to charge the battery. Charge, (Note: The full charge state of the lithium iron phosphate battery charger is close to the 30% charging mode voltage of the lithium ion battery, and the two lithium ion batteries are stopped using the CC-CV method, so two These chargers can be mixed to meet some functions.) 3. When storing the power lithium battery, it should be kept away from metal sharp objects, placed in a ventilated and dry environment, and clean up the dirt and debris on the surface of the battery in advance. 4. In the unused state, prevent the presence of metal objects in the socket position. In order to meet the discharge performance of high-rate batteries, there is usually no protection plate of conventional lithium-ion batteries for protection, so a short circuit will cause the battery to discharge instantaneously, and this high-rate battery The instantaneous discharge current of the battery is extremely powerful. When this kind of battery is short-circuited and instantaneously discharged, it is very destructive. 5. If there is dirt on the battery interface, wipe it with a thousand cloth. Otherwise it will cause poor contact, causing energy loss or failure to charge. 6. Do not place the battery near an open flame or a place with a heating source; 7. Do not store the battery in a humid environment or a place exposed to direct sunlight; 8. Please ensure that the battery is stored in a dry and normal temperature environment (the ambient temperature is 10 -30 degrees is best); 9. Please ensure that there are no flammable and explosive objects around the battery storage; 10. Please ensure that there is no squeezing phenomenon during battery storage and transportation, and ensure that the battery is not squeezed by any external force; 11. Do not use for a long time Please charge about 50% of the battery for storage (single cell voltage is between 3.8V-3.9V). Disclaimer: Some pictures and contents of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: Advantages and precautions for use of lithium ion battery pack