EV battery
How to use it correctly to extend the battery life of drones
by:Vglory
2021-04-02
There are requirements for chargers. Some chargers have imperfect power-off function after being fully charged, which causes the single-chip battery to be fully charged to 4.2V and has not stopped charging. In addition, after some chargers have been used for a period of time, it is easy to aging due to components There is a problem of non-stop charging. Therefore, the lithium polymer battery must be watched when charging. When the charging time is found to be too long, manually check whether the charger is malfunctioning. If there is a malfunction, unplug the battery as soon as possible, otherwise the lithium polymer battery If it is overcharged, it will affect the life of the battery, and it will directly explode and catch fire. In addition, remind everyone that when charging, be sure to charge the battery according to the specified charging C number or a lower C number, and not exceed the specified charging current. 2. However, the discharge curve of the discharged battery shows that the voltage drops relatively fast at the beginning of the discharge, but when the discharge reaches 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. Some model friends will over-discharge every time they fly because they have fewer batteries. Such batteries are very short-lived. The strategy is to fly one minute as little as possible, and one more cycle of life. It is better to buy two more batteries than to fly the battery to exceed the capacity limit each time. To make full use of the battery alarm, you should land as soon as the alarm is issued. 3. If the battery is not fully charged, it can not be stored for more than 3 days. If it is not discharged for more than a week, some batteries will be swollen, and some batteries may not swell temporarily, but after several times of fully charged storage, the battery May be scrapped directly. Therefore, the correct way is to charge it after receiving the flight mission. If there is no flight mission within 3 days after the battery is used, please charge the voltage of the single chip to 3.80~3.90V and save it. If the battery does not fly due to various reasons after being charged, the battery should be discharged to 3.80~3.90V and stored within 3 days after being fully charged. If the battery is not used within three months, continue to store the battery after charging and discharging it once to extend the battery life. The battery should be stored in a cool environment. When storing the battery for a long time, it is best to put it in a sealed bag or a sealed explosion box. The recommended ambient temperature is 10~25°C, and it is dry and non-corrosive. 4 , Do not damage the outer skin The outer skin of the battery is an important structure to prevent the battery from exploding and leaking and catching fire. The damage of the aluminum-plastic outer skin of the lithium polymer battery will directly cause the battery to catch fire or explode. The battery should be handled with care, and the cable tie should be tightened when fixing the battery on the airplane. Because there is a possibility that the battery will be thrown out due to the tightness of the tie when flying in a big dynamic flight or crashing, which will easily cause damage to the battery skin. 5. No short circuit This situation often occurs during battery welding wire maintenance and transportation. A short circuit will directly cause the battery to ignite or catch fire and explode. When you find that the battery is disconnected after a period of use and you need to re-weld the wires, pay special attention to the electric soldering iron not to touch the positive and negative electrodes of the battery at the same time. In addition, in the process of transporting batteries, the best way is to put each battery in a self-sealing bag and put it in an explosion-proof box to prevent the positive and negative electrodes of a battery from touching at the same time due to bumps and collisions during transportation. Other conductive materials short-circuit or break the skin and short-circuit. 6. The principle of not catching cold is ignored by many flying friends. There are often low temperatures in the north or high altitude areas. At this time, if the battery is left outside for a long time, its discharge performance will be greatly reduced. If you need to fly with the flight time at normal temperature, it will definitely cause problems. At this time, the alarm voltage should be increased (for example, the single-chip alarm voltage is adjusted to 3.8V), because the voltage drop will be very fast in a low temperature environment, and the alarm will drop immediately when the alarm sounds. 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, etc. To 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 the normal temperature to ensure safe flight. 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: Analysis of the advantages and disadvantages and lifespan of lithium batteries
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