EVE Energy 25P Drones Weight v power trade off in pack design - how to pick the right balance.
Discover how the EVE Energy 25P cell optimises drone battery design, balancing weight and power for enhanced performance in UAV applications.
Value Propositions
Cylindrical 18650 form factor for versatile applications.
Nominal capacity of 9.0 Wh and 2.5 Ah for reliable energy delivery.
Top-quartile volumetric power density of 6199 W/l for efficient energy use.
Gravimetric energy density of 187.5 Wh/kg supports lightweight designs.
Maximum continuous discharge of 30 A enables high-performance UAV operations.

About the Cell
The EVE Energy 25P cell is designed in a cylindrical 18650 form factor, offering a nominal capacity of 9.0 Wh and 2.5 Ah. With a volumetric energy density of 516 Wh/l, it is well-suited for drone applications where space and weight are critical. The cell boasts a gravimetric energy density of 187.5 Wh/kg, making it a lightweight option for UAV battery packs. Additionally, the cell features a top-quartile volumetric power density of 6199 W/l, which is essential for high-energy demands during flight. The maximum continuous discharge rate of 30 A allows for robust performance in demanding scenarios, ensuring that drones can operate efficiently under various load conditions. Compared to the database median, the EVE Energy 25P cell's volumetric power density is +53% higher, showcasing its capability to deliver power effectively.
Application Challenges
In the context of drones, the challenge of balancing weight and power in battery pack design is paramount. The EVE Energy 25P cell addresses this by providing a high energy density, which is crucial for extending flight times while keeping the overall weight of the UAV manageable. As drone technology evolves, the need for lightweight battery solutions that do not compromise on power output becomes increasingly important. The weight versus power trade-off is particularly significant in applications such as long endurance missions, heavy lift operations, and extreme environment deployments. The ability to select the right battery cell can directly impact the drone's performance, mission success, and operational efficiency. Therefore, understanding the specifications and capabilities of cells like the EVE Energy 25P is vital for engineers and designers in the UAV industry.
Why this Cell
The EVE Energy 25P cell is an excellent choice for drone applications due to its impressive specifications. With a nominal capacity of 9.0 Wh and a gravimetric energy density of 187.5 Wh/kg, it provides a lightweight solution that does not sacrifice performance. The cell's maximum continuous discharge rate of 30 A positions it in the top-quartile compared to the database median, allowing for high discharge rates necessary for demanding UAV operations. Furthermore, its volumetric energy density of 516 Wh/l ensures that drones can carry more energy in a compact form factor, which is essential for optimising flight time and payload capacity. This balance of weight and power makes the EVE Energy 25P cell a prime candidate for custom UAV battery packs, enabling designers to achieve the best possible endurance and efficiency.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising the selection of battery cells for drones. By simulating various load profiles, engineers can assess how the EVE Energy 25P cell performs under different conditions, including thermal behaviour and voltage response. This allows for accurate predictions of usable energy and helps in understanding the impact of weight on flight time. For instance, modelling can reveal how the cell's maximum continuous discharge rate of 30 A affects overall drone performance during high-demand scenarios. Additionally, simulations can identify potential overheating issues, ensuring that the selected cell maintains safety and reliability throughout its operational life. By leveraging these advanced design techniques, engineers can confidently choose the right battery cell, minimising the risks associated with trial-and-error testing and enhancing overall mission success.


