by Lithium polymer batteries (LiPo batteries) are by far the most common type of battery used in drones. They offer a high energy density and lightweight form factor that makes them ideal for powering small unmanned aerial vehicles. Here are a few of the main LiPo battery types used in drones:
These packs utilize 18650 lithium-ion battery cells arranged in a configuration similar to AA batteries. They provide reliable power and come in a variety of sizes, making them compatible with many smaller drones. However, their cylindrical shape results in less energy density compared to other battery designs.
Most consumer and professional drones today use LiPo packs shaped as rectangular prisms. This form factor allows for tighter packing of cells, maximizing energy capacity in a compact size. Square LiPo packs are easily found in capacities ranging from 1,300 to 6,000mAh or higher for larger drones.
Custom Battery Pack Designs
Some high-end drone manufacturers design custom battery shapes specific to their airframes. While non-standard, these batteries can better integrate components internally for improved weight distribution and flight efficiency compared to off-the-shelf packs. Custom designs are generally only available directly from the drone manufacturer.
Battery Capacity and Flight Time
A key factor in choosing drone batteries is capacity, measured in milliamp hours (mAh). Higher capacity batteries allow for longer continuous flight times on a single charge. As a general guideline:
– 800-1,300mAh batteries provide 8-12 minutes of flight time for mini drones weighing under 250g.
– 1,300-2,000mAh is suitable for micro and small quadcopters under 500g with 10-15 minutes flight time.
– Drones from 500g-1kg commonly use 2,000-3,000mAh batteries for 15-20 minutes.
– Large consumer and professional drones over 1kg often require 3,000-6,000+mAh or custom high capacity packs for 20-40 minutes or more.
Always evaluate flight times based on the weight of your specific drone configuration (airframe, electronics, camera setup, etc.). Heavier payloads significantly reduce hovering efficiency and runtime. Having extra batteries allows nonstop swapping for extended aerial sessions.
Selecting the Right Charge Rating
UAV Battery are identified not just by capacity but discharge amperage or “C rating.” This refers to how fast the battery can release power compared to its capacity. A higher C rating indicates a battery capable of handling greater current demands from motors and other components. Common C ratings for drone batteries include:
– 30C/45C – Suitable for mini drones under 250g with basic components.
– 50C/60C- Standard for micro and small hobby-grade drones up to 450-500g.
– 60C/80C-Recommended for DJI drones, FPV racers up to 800-1kg drones.
– Over 80C- Needed for heavy lifting 1kg+ vehicles or those carrying cameras/gimbals.
Always choose a battery with a C rating matching or exceeding your drone’s current demands. Lower C ratings may struggle during high-power maneuvers and overheat under prolonged stress. Consider future-proofing with a battery supporting greater discharge.
Charging and Maintenance
For safety and longevity, it’s critical to use a high-quality charger specifically designed for LiPo batteries. Dedicated drone chargers automatically regulate voltage/current profiles to safely top off cells without risk of damage from overcharging. Most charge in 1-2 hours.
Also, never leave batteries charging unattended, and promptly remove from the charger once full. Only recharge in a fireproof container away from flammables, as damaged/faulty LiPos pose an explosion hazard. Store charged packs at 40-50% capacity when not in regular use to avoid degradation over time.
With the right UAV Battery selection and care, your drone can enjoy reliable power for many flights to come. Choose wisely based on your aircraft’s needs, and batteries will keep it airborne with minimal hassle. Always remember safety when handling and charging lithium polymer power packs.
About Author - Money Singh
Money Singh is a seasoned content writer with over four years of experience in the market research sector. Her expertise spans various industries, including food and beverages, biotechnology, chemical and materials, defense and aerospace, consumer goods, etc. LinkedIn Profile
