With a cold snap, the pace of winter is getting closer.
The weather is getting colder, and the enthusiasm of the little ones for the drones is not diminished. Especially after the heavy snow, the little friends want to go out and show off. How to "slow" in the cold winter, what are the skills of winter drones?
The aircraft is powered by a lithium battery, and the low temperature environment will seriously degrade the performance of the lithium battery. When the battery is exposed to an environment below 15 ° C, the chemical activity of the battery is significantly reduced, the internal resistance is increased to cause a decrease in discharge capacity, and the voltage drop is increased when the battery is discharged.
There is two major risks to a significant voltage drop (single cells below 3V) :
First, the maximum thrust of the aircraft power system is not sufficient to maintain the flight;
Second, the battery will be actively shut down to avoid over-discharge of the battery. This feature is a common problem of lithium batteries, and there is still no perfect solution. Smart devices such as mobile phones and tablet PCs that everyone uses will also shut down in low temperature environments.
In response to the above questions, we recommend that you take the following three steps:
1. Before flying, be sure to fully charge the battery to ensure that the battery is in a high voltage state.
2. Fully preheat the battery to more than 15 degrees to reduce the internal resistance of the battery. It is recommended to use a battery preheater to preheat the battery.
3. After the takeoff, keep the aircraft hovering for about one minute, let the battery use internal heat, let yourself fully preheat, and reduce the internal resistance of the battery.
In the winter, the aerial photography aircraft, in addition to the regular inspection items, also need to pay attention to the following:
The weather is getting colder, and the enthusiasm of the little ones for the drones is not diminished. Especially after the heavy snow, the little friends want to go out and show off. How to "slow" in the cold winter, what are the skills of winter drones?
The aircraft is powered by a lithium battery, and the low temperature environment will seriously degrade the performance of the lithium battery. When the battery is exposed to an environment below 15 ° C, the chemical activity of the battery is significantly reduced, the internal resistance is increased to cause a decrease in discharge capacity, and the voltage drop is increased when the battery is discharged.
There is two major risks to a significant voltage drop (single cells below 3V) :
First, the maximum thrust of the aircraft power system is not sufficient to maintain the flight;
Second, the battery will be actively shut down to avoid over-discharge of the battery. This feature is a common problem of lithium batteries, and there is still no perfect solution. Smart devices such as mobile phones and tablet PCs that everyone uses will also shut down in low temperature environments.
In response to the above questions, we recommend that you take the following three steps:
1. Before flying, be sure to fully charge the battery to ensure that the battery is in a high voltage state.
2. Fully preheat the battery to more than 15 degrees to reduce the internal resistance of the battery. It is recommended to use a battery preheater to preheat the battery.
3. After the takeoff, keep the aircraft hovering for about one minute, let the battery use internal heat, let yourself fully preheat, and reduce the internal resistance of the battery.
In the winter, the aerial photography aircraft, in addition to the regular inspection items, also need to pay attention to the following:
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