No drone can work without a reliable source of energy. It is precisely the battery for a drone that determines how much time the craft will spend in the air, what weight it will be able to lift, and how stably its systems will work. Even the most modern quadcopter loses its effectiveness if it is equipped with a weak or incorrectly selected battery.
This material has been prepared by the BlueBird Tech team for UAV operators, volunteers, and everyone who works with drones for civilian or professional purposes. The article will help to understand how to correctly choose a battery for a drone, what flight time depends on, how operation affects the resource of a battery, and what needs to be done to extend it.
What a Battery for a Drone Is and Why It Is Important
A battery for a drone is the main source of energy that powers all the systems of a drone. It ensures the operation of the motors, electronics, camera, transmitters, and other components. Without a stable and quality battery, a drone simply will not be able to rise into the air or perform the set task.
It is precisely on the characteristics of the battery that the flight duration, thrust power, and stability of control depend. Therefore, the correct choice of battery is one of the key factors of the effectiveness of any UAV.
In addition, interchangeable batteries make it possible to quickly restore the operation of a drone. The availability of several sets of batteries allows the operator to significantly increase the total time of carrying out a mission.
Main Characteristics of Batteries for Drones
When choosing a battery, it is important to understand its basic parameters. These include: battery capacity, operating voltage, type of battery, maximum discharge current, weight, and dimensions.
Capacity determines how much energy a battery can store and how long a drone will remain in the air. Voltage affects the power of the motors and the stability of the electronics’ operation. The type of battery determines its behavior under load and its service life.
The most widespread for drones are LiPo batteries. They provide high power with a relatively low weight. For tasks where maximum autonomy is important, Li-Ion batteries are used, which have a greater resource but a lower discharge current.
How the Battery Affects the Flight Time and Stability of a Drone
The choice of battery directly determines how many minutes a drone will be able to work without recharging. The greater the capacity of the battery, the longer the flight, but at the same time the weight of the craft also increases.
A too-heavy battery can overload the motors, reduce maneuverability, and even lead to the overheating of systems. Therefore, it is important to maintain a balance between capacity and mass.
The stability of flight depends on the discharge current indicator. If a battery is not able to provide the necessary power, a drone can lose thrust during sharp maneuvers or lose altitude.
More about how a battery affects the operation of a drone can be read in the article: «A battery for a quadcopter: types, characteristics, and choice», which examines the technical features of different types of batteries.
Rules for Using and Charging a Battery for a Drone
The correct operation of a battery significantly extends its resource. It is important to follow several basic rules: charge the battery only with a compatible charger, do not allow complete discharge, avoid overheating, do not use damaged batteries, store them in safe conditions.
After an active flight, batteries need to be given time to cool before recharging. Charging a hot battery is dangerous and harmful to its resource.
In field conditions, a problem often arises with access to the electrical grid. For such situations, charging infrastructure, in particular charging stations, is a useful solution. For example, the charging station “Genera-1200” 220 V makes it possible to repeatedly charge drone batteries without stationary power, which is especially important during long deployments.
Typical Mistakes That Shorten the Resource of a Battery
The most common mistakes when working with batteries for drones include: the complete discharge of the battery, storage in a fully charged state, charging from low-quality devices, use at extreme temperatures, mechanical damage.
Frequent cycles of «fast charging», storing batteries under direct sunlight or in a humid environment, as well as long-term storage without periodic control of the charge level also have a negative impact. Following simple rules of operation makes it possible to increase the real service life of a battery several times over.
Signs That It Is Time to Change the Battery for a Drone
Over time, any battery loses its initial properties. The main signals of the need for replacement are: a noticeable reduction in flight time, strong heating during operation, swelling of the battery casing, unstable voltage, the rapid drop of the charge level.
If a battery does not hold a charge or behaves unpredictably, its further use can be dangerous. In such cases, it is better to replace the battery with a new one to avoid the risk of losing the drone.
Conclusions
A battery for a drone is one of the most important elements of any drone. The flight duration, the stability of the electronics’ operation, and the safety of operation depend on its quality and correct choice.
The competent selection of a battery, the observance of charging and storage rules make it possible to significantly extend its resource and increase the effectiveness of using a UAV.