1. But not to put it. The discharge curve of the battery shows that when the discharge is started, the voltage drops faster, but the voltage drops between 3.9 ~ 3.7V, and the voltage drops unpleasantly. However, once it drops to 3.7V, the voltage drop will speed up. If the control is not good, it will cause it. If it is light, it will damage the battery. If the voltage is too low, the voltage will cause the explosor. So try to fly for one minute as much as possible, and fly a cycle by life. I would rather buy two more batteries, and do not fly the battery to exceeding the capacity limit each time. Therefore, the flying hands should use the battery strictly in accordance with the flight requirements. When the aircraft reports the alarm at a low power volume, it should land as soon as possible.

　　2. Do not force the flight if the temperature is too high or too low. To preheat insulation, many flying friends will ignore this principle. Then there must be a thermal insulation treatment for the battery. Before taking off, the battery should be stored in a warm environment, such as the house, inside the car, and inside the thermal box. Quickly install the battery when taking off and perform the flight task. Try to shorten the time to half of the normal temperature when flying at low temperature to ensure safe flight.

　　3. Pay attention to the use temperature at low temperature. In the north or high altitude areas, there are often low temperature weather. At this time, if the battery is placed outside for a long time, its discharge performance will be greatly reduced. If the flight time is flying at room temperature, it will definitely cause a problem. At this time, the alarm voltage should be increased (such as the single -chip alarm voltage to 3.8V), because the voltage drop at low temperature will be very fast, and the alarm will land immediately. Then there must be a thermal insulation treatment for the battery. Before taking off, the battery should be stored in a warm environment, such as the house, inside the car, and inside the thermal box. Quickly install the battery when taking off and perform the flight task. Try to shorten the time to half of the normal temperature when flying at low temperature to ensure safe flight.

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