EVE Energy 40PL Drones Maximise flight time - optimise the cell selection, duty cycle and flight speed to maximise flight time.
Discover the EVE Energy 40PL cell for drones, designed to maximise flight time and optimise performance in demanding applications.
Value Propositions
Cylindrical 21700 form factor for efficient space utilisation.
Nominal capacity of 14.4 Wh and 4.0 Ah for reliable energy delivery.
Top-quartile volumetric power density of 10,108 W/l for high performance.
Gravimetric energy density of 215 Wh/kg, enhancing flight duration.
Maximum continuous discharge of 70 A, supporting demanding applications.

About the Cell
The EVE Energy 40PL cell features a cylindrical 21700 form factor, providing a nominal capacity of 14.4 Wh and 4.0 Ah. With a volumetric energy density of 578 Wh/l, it is designed for high energy applications, particularly in drone technology. The gravimetric energy density stands at 215 Wh/kg, making it suitable for lightweight drone battery packs. The cell's volumetric power density is an impressive 10,108 W/l, placing it among the highest in the database, while the gravimetric power density reaches 3,761 W/kg, also in the top-quartile range. This combination of high energy and power densities allows for extended flight times and improved performance in various drone applications. The maximum continuous charge current is 8.0 A, with a standard charge current of 2.0 A, ensuring efficient energy replenishment. The maximum continuous discharge current is 70.0 A, with a standard discharge current of 0.8 A, making it ideal for high-demand scenarios.
Application Challenges
In the realm of drones, maximising flight time is critical for operational efficiency. The EVE Energy 40PL cell addresses this challenge by optimising cell selection, duty cycle, and flight speed. The ability to deliver high energy density is essential for long endurance drone batteries, particularly in applications such as industrial inspections and emergency response. The challenge lies in ensuring that the battery can sustain high discharge rates without overheating, which is crucial for maintaining safety and performance. Additionally, accurate state of charge (SoC) prediction is vital for mission planning, especially in extreme environments where temperature fluctuations can impact battery performance. The EVE Energy 40PL cell's specifications allow for effective thermal management and reliable energy delivery, making it a suitable choice for UAV battery pack design.
Why this Cell
The EVE Energy 40PL cell is specifically designed to meet the demands of drone applications. With a maximum continuous discharge of 70 A, it supports high discharge rate UAV batteries, ensuring that drones can perform under heavy loads. The cell's volumetric energy density of 578 Wh/l is among the highest in the database, providing the necessary energy for extended flight times. Additionally, the gravimetric energy density of 215 Wh/kg enhances the overall efficiency of lightweight drone battery packs. This combination of high energy and power densities allows for optimal performance in UAV battery optimisation, making the 40PL an excellent choice for custom UAV battery packs. The standard charge rate of 2.0 C ensures quick recharging, which is essential for operational readiness in dynamic environments.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising the performance of the EVE Energy 40PL cell in drone applications. By modelling load profiles and thermal behaviour, engineers can predict how the cell will perform under various conditions, including high discharge rates and temperature fluctuations. This predictive capability allows for informed decisions regarding cell selection, ensuring that the chosen battery can handle the specific demands of the mission. For instance, simulating the thermal rise during high current draws helps identify potential overheating issues, enabling the design of effective thermal management strategies. Additionally, voltage sag can be accurately modelled to ensure that the drone maintains sufficient thrust throughout its flight envelope. Overall, simulation enhances the reliability of UAV battery performance testing and supports the development of efficient drone powertrain systems.


