What should I do if the drone's lithium battery has insufficient battery life?

UAV lithium battery life is insufficient, and the low temperature situation is serious. As the scale of UAV applications continues to expand, complex UAV varieties have appeared on the market, but these UAVs have an obvious problem with limited endurance. Battery problems have repeatedly caused voltage drops, lack of flight power, and even more serious aircraft crashes. In addition to the cold winter temperatures, lithium batteries are a very serious functional test. Insufficient life of lithium batteries in winter has also exacerbated this problem. It is much simpler to calculate battery life on low-current devices such as laptops and mobile phones. However, with regard to systems with large operating currents, large current changes, and chaotic operating conditions, such as drones and electric vehicles, the dynamic calculation of battery life requirements makes the situation even more confusing. If the battery is placed outdoors for a long time, its discharge function will be greatly reduced. If the battery is allowed to fly at room temperature, it will definitely cause problems. What we have to do at this time is to increase the alarm voltage, and then insulate the battery. Before removing the battery, the battery should be placed in a warm environment, such as a house, car, insulated box, etc. The battery should be charged quickly for takeoff and flight missions should be performed. When flying at low temperatures, try to shorten the flight time to half of the normal temperature to ensure flight safety. Charging and energy saving issues have led to the emergence of smart batteries. Now lithium batteries are all the rage. As we all know, there are special requirements for charging lithium batteries. At present, many lithium battery packs use multiple battery series and methods. Due to individual differences in batteries, it is impossible to achieve a 100% balance between charging and discharging, so a complete set of charging processing circuits is particularly necessary. And this is the second function that a smart lithium battery must have for charging and discharging a perfect lithium battery pack. The aspirational UAV smart lithium battery should be further simplified. Modules that do not need to be made repeatedly are taken out of the smart battery and put into the flight device or charger, such as: discharge processing module, charging processing module. Not only can the processing cost be reduced without changing the original function, but it is also important to increase the processing capacity in terms of the environment, because there is no need to process non-copyable circuits (future e-waste). Forward flight safety battery protection is crucial before flying, to ensure that the battery is fully charged to ensure that it is under high voltage. Fully preheat the battery to above 25 degrees to reduce the internal resistance of the battery. It is recommended to use a battery preheater to preheat the battery. After taking off, the aircraft should hover for about 1 minute to make full use of the internal heat of the battery to fully preheat itself and reduce the internal resistance of the battery. Regarding the insulation method of the aircraft battery, such as the sponge pad of the battery, the thermal grid tape of the airframe should be cut off the air circulation. Knowing these truths and fulfilling the above suggestions, our winter flight safety factor will be greatly improved, and we can use drones more carefully. [Knowledge]: The flying principle of the drone's lithium battery flight is the heavier the weight of the flight itself is, the greater the current is needed to maintain the power; the air cushion continues to fly, such as the full throttle climb, the battery will continue to discharge large currents; in plateau areas, the air is thin and the air pressure Low, the aircraft needs a higher motor speed to maintain power, and the battery output current will be further increased. The above conditions, coupled with the low temperature in winter, make the voltage drop of the battery further increase; in severe cases, it can even cause the battery to shut down, due to lack of voltage, resulting in power failure and collapse. The lower the battery temperature, the lower the battery voltage after takeoff. When the battery temperature rises, the voltage gradually returns to normal. Suppose it is a low-power takeoff. At this time, the battery voltage is very low at the beginning, and the body temperature of the battery is very low, the voltage will be sensitively pulled down, which greatly increases the risk of insufficient voltage. So we always focus on flying at full strength. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: The technical route of lithium batteries is facing challenges