Why drone batteries are expensive

Regarding the drone, there are two quantities to be controlled by the drone battery, one is the weight of the battery, and the other is the high-current discharge of the battery. The take-off of the drone itself is to overcome its own gravity to perform work, which is bound to make the weight of the drone's battery requirements higher. UAV batteries will undoubtedly increase the battery capacity when pursuing battery life, which will lead to new types of batteries, so you will find that the battery capacity of many UAV batteries is not as high as that of power banks. Therefore, many drone batteries use lighter lithium-ion polymer batteries with the same capacity in order to reduce the weight of the battery. On the other hand, the UAV battery has a variety of flight modes, the simplest of which is sudden acceleration or sudden increase in flight altitude. This involves the instantaneous or continuous high-current discharge of the battery, which involves the battery's discharge rate. A battery similar to a power bank generally has a discharge rate between 1C and 5C, which is a particularly conventional discharge rate. As for UAV batteries, they are generally above 10C, and the discharge power is higher. The Grignard UAV battery produced by Shenzhen Greepu Battery Co., Ltd. can reach a discharge rate of up to 150C. 2. Safety protection As for the UAV battery, it is directly bound to the UAV. If something goes wrong, the loss will not only be the battery, but the entire UAV. Generally speaking, more well-known drones start in the thousands. Therefore, the battery safety protection is a must. For example, a 5800mah battery for DJI Phantom 4 can hold as much as 89Wh. A 20000mah power bank can hold only 70Wh. Such a 5800mah battery can only support 30 minutes of flight time. Imagine how much pressure is placed on the battery. In this working environment for a long time, the polymer lithium ion battery will wear out very quickly, and the rapid discharge within a short period of time will also cause the battery temperature to rise rapidly, which makes the UAV battery more Further security protection. DJI's drone batteries are all called intelligent flight batteries, because in addition to lithium polymer battery cells, there are more components on the battery. First of all, in order to protect the battery's long-term working safety, the power management system can protect the battery from charging and discharging, so that the battery can always work in a safe range. Second, if the battery is stored for a long time, it will affect the battery life. The smart battery has a built-in battery storage self-discharge protection, which can automatically discharge when it is left for a long time, extending the battery life. 3. High production cost. As far as power banks are concerned, UAV batteries are generally high-rate batteries, and the production technology cost of high-rate polymer lithium-ion batteries is much higher than that of ordinary batteries. The electrode materials and manufacturing processes used are also different and demanding. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.