Why is unmanned aerial vehicle (UAV) battery so different as a lithium battery?

Someone who is familiar with UAV knows that, taking Dajiang as an example, the price of a piece of more than 5000 milliampere unmanned aerial vehicle (UAV) battery is nearly $1000, and a power bank with 20000 mAh we usually use is just about 100-200 yuan, why is it so different? Isn’t it used longer if using a 20000 mAh power back on the unmanned aerial vehicle (UAV)?

This is because the drones Polymer lithium ion batteries and charging treasure adopted18650 battery’s different, the price a lot more expensive, this is because compared to other digital devices, unmanned aerial vehicle (uav) stricter with battery, so the price has soared.

First performance, the work is done, the gravity of the unmanned aerial vehicle (uav) to overcome their own, therefore, higher requirements for the weight of the battery, and increase the battery capacity will lead to weight gain, therefore, only under the same capacity lighter weight polymer Lithium ion batteries Can satisfy the need, on the other hand, the unmanned aerial vehicle (uav) is extremely high, to the requirement of battery power when the hover state rapidly improve the throttle to the highest speed, battery power will be improved quickly and in a short period of time several times of power, the power change only polymer lithium ion battery can meet, in fact, 18650 batteries by series-parallel can meet such requirements, tesla motors batteries is more than 7000 18650 battery series parallel together, so that they can withstand momentary power demand, this is obviously not suitable for in unmanned aerial vehicle (uav).Therefore, in terms of performance, the only polymer lithium ion battery can meet the demand of such use.

Of course, even the loss of polymer lithium ion battery on the unmanned aerial vehicle (uav) is very fast, big jiang elves 4 a 5800 mAh battery, the energy to accommodate more than 89 wh, a 20000 mAh charging treasure to accommodate the energy of the general is only 70 wh, and such a 5800 mAh battery can only support 30 minutes of flight time, you can imagine how much pressure on batteries, polymer lithium ion battery in this kind of work environment for a long time, loss of battery very fast, and in a short period of time can also lead to rapid discharge the battery temperature rise quickly, that has made unmanned aerial vehicle (uav) batteries need to be further safety protection.

Dajiang unmanned aerial vehicle (uav) cells are known as intelligent flight, this is because in addition to the polymer lithium ion battery, the battery has more parts. First of all, in order to protect the security of the battery to work long hours, power management system for battery charge and discharge protection, can always make the battery work within the scope of the security, secondly, if the battery full charge shelved for a long time can affect battery life, big jiang intelligent battery built-in battery storage self-discharge protection, put on hold for a long time to be able to discharge automatically, extend battery life. This set of technology, a bit like tesla lite version of the power management system.

Therefore, whether considering from the performance or security, unmanned aerial vehicle (uav) battery demands more than ordinary power bank with 18650 lithium battery, which makes it costs higher.

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