This is because the polymer lithium-ion battery used in the drone is different from the battery used in the power bank. The reason why the price is much more expensive is because compared to other digital devices, the drone has more battery requirements. Strict, so the price has to rise linearly.

    The first is performance. UAVs have to overcome their own gravity to do work. Therefore, the weight requirements of the battery are higher, and increasing the battery capacity will lead to an increase in weight. Therefore, there is only a lighter polymer lithium ion with the same capacity. The battery can meet the requirements.

    On the other hand, drones have extremely high requirements on battery power. When the throttle is quickly increased from hovering to the highest speed, the battery power will increase rapidly, and the power will increase several times in a short time. Power changes can only be met by polymer lithium-ion batteries. In fact, batteries can also meet such requirements through series and parallel connections. 

    Of course, even the polymer lithium-ion battery wears very quickly on the drone. The polymer lithium-ion battery wears very quickly in this working environment for a long time, and the rapid discharge in a short period of time will also cause the battery temperature to rise rapidly. All these make UAV batteries need further safety protection. UAV batteries are called intelligent flight batteries, because in addition to polymer lithium-ion batteries, there are more components on the battery.

    First, 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 left fully charged for a long time, it will affect the battery life. The battery is built-in There is self-discharge protection for battery storage, which can automatically discharge when stored for a long time, prolonging the use time of the battery. This set of technologies is a bit like a streamlined version of Tesla's power management system.

    Therefore, whether it is from a performance or safety perspective, the battery requirements for drones are higher than those used by ordinary power banks, which also makes their prices high.