What Should be Done to Save Battery Life in UAV’s?

The battery is one of the most important factors that ensure the drone takes off correctly. How to increase the service life is a question worth considering by every drone owner. Drone batteries and cell phone batteries are lithium batteries. Drone batteries have a distinctive feature compared to cell phone batteries-discharge. Drone batteries need to emit different currents in different situations to meet the requirements of DRONE use in different environments. For example, during aerial photography, if a strong wind is encountered, the battery needs to be able to discharge a high current to compensate accordingly to ensure the position of the drone. Due to different usage requirements, the lifespan of drone batteries is not the same.

Do Not Overdischarge

The discharge curve of a lithium battery shows that the battery voltage drops relatively quickly at the beginning of the discharge. But when the voltage is discharged to 3.9~3. 7V, the voltage drop slows down. When the voltage drops, the voltage drop rate will accelerate, and if people misuse the battery, the lithium battery will be over-discharged. Overdischarge will damage the battery itself and even cause the battery to explode or leak.

Do Not Overcharge

Both overcharging and overdischarging will damage lithium batteries in the UAV or other equipment. You can follow the warnings below to avoid overcharging.

  • Use a special charger.
  • Correctly set the number of battery cells in the battery pack
  • Charge a new lithium battery pack for the first time, check the voltage of each battery cell in the battery pack, and do the same for every 10 charges and discharges in the future. If the voltage difference between the battery cells in the battery pack exceeds 0.1V, you must charge the voltage of each battery to 4.2V to make it even. If the voltage difference of the battery unit exceeds 0.1V after each discharge, it means your battery is faulty and needs to be replaced.
  • Use a safe place to place rechargeable batteries and chargers.
  • The charging current may vary accordingto the manufacturer. Buying 3 batteries to charge them alternately is more cost effective than having to buy one battery and fast charge it.

Do Not Store Lithium Battery in Full Energy State

Fully charged batteries cannot be stored at full power for more than 3 days. Therefore, the correct way is to recharge after receiving the quest. If there is no task within 3 days after the battery is used up, please charge the monolithic voltage to 3.80~3. The battery should be stored in a cool environment for storage. When storing the battery for a long time, it is best to put it in a sealed bag or a sealed, explosion-proof box. The recommended ambient temperature is 10~25°C and is dry and non-corrosive.

Do not damage the packaging

The outer packaging of the battery is an important structure to prevent the battery from exploding and igniting the leaked liquid. Damage to the aluminum-plastic film of the lithium polymer battery will cause the battery to directly catch fire or explode. The battery should be taken lightly and the cable ties should be tightened while the battery is fixed to the aircraft. When the aircraft is dynamically flying or falling, it is possible for the battery to pop out because the cable tie is not tight, which can easily damage the outer shell of the battery.

Do Not Short Circuit

This situation usually occurs during the maintenance and transportation of battery welding wires. A short circuit will cause the battery to directly ignite or explode. When it is found that the battery has been disconnected and needs to be re-soldered after a period of use, special care should be taken not to let the soldering iron touch the positive and negative electrodes of the battery at the same time. In addition, in the process of transporting batteries, it is best to put each battery in a separate explosion-proof case to prevent the positive and negative electrodes of a particular battery from contacting other conductive materials.

Do Not Leave the Battery in Cold Temperature

Low-temperature weather usually occurs in the north or in high-altitude areas. Meanwhile, if the battery is left outside for a long time, its discharge performance will be greatly reduced. If you have to fly at room temperature though, the flight time will definitely go wrong. Before take off, the battery, house, car, incubator, etc. It should be stored in a warm environment such as To quickly install the battery during takeoff and perform flight missions.

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