Tenpower 25SG Drones Weight v power trade off in pack design - how to pick the right balance.
Explore the Tenpower 25SG cell for drones, optimising weight and power for enhanced performance and endurance in UAV applications.
Value Propositions
Cylindrical 18650 form factor for compact design.
Nominal capacity of 9.0 Wh and 2.5 Ah for reliable energy supply.
Top-quartile power density (+58% vs median 750 W/kg) for brisk current draws.
Maximum continuous discharge of 35.0 A for demanding applications.
Volumetric energy density of 511 Wh/l, supporting lightweight designs.
About the Cell
The Tenpower 25SG cell is designed in a cylindrical 18650 form factor, providing a nominal capacity of 9.0 Wh and 2.5 Ah. With a volumetric energy density of 511 Wh/l, it is well-suited for applications requiring high energy in a compact space. The gravimetric energy density stands at 200 Wh/kg, ensuring that the cell remains lightweight while delivering substantial power. The cell's volumetric power density is an impressive 7151 W/l, placing it among the highest in the database, which enhances its performance in high-demand scenarios. Furthermore, the maximum continuous discharge rate of 35.0 A allows for robust performance in critical applications, making it a reliable choice for drone battery design.
Application Challenges
In the realm of drones, the challenge of balancing weight and power is paramount. The application of the Tenpower 25SG cell addresses the critical need for lightweight drone battery packs that do not compromise on performance. The weight versus power trade-off is essential in UAV battery pack design, as it directly influences flight time and operational efficiency. High energy density is crucial for extending drone flight time, especially in demanding environments where every gram counts. The ability to optimise UAV battery performance while maintaining a lightweight design is a significant challenge that the Tenpower 25SG cell effectively meets.
Why this Cell
The Tenpower 25SG cell is an ideal choice for drone applications due to its exceptional specifications. With a maximum continuous charge rate of 10.0 A (4.0 C), it supports rapid charging, which is essential for operational efficiency. The cell's volumetric energy density of 511 Wh/l is above the median of 542 Wh/l, making it a top-quartile option for energy storage. Additionally, its maximum continuous discharge rate of 35.0 A allows for high discharge applications, ensuring that drones can perform demanding tasks without overheating or compromising safety. This combination of high energy and power density makes the 25SG cell a prime candidate for custom UAV battery packs.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising the performance of the Tenpower 25SG cell for 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 the selection of the most suitable cell for specific missions, ensuring reliability and efficiency. For instance, simulating the thermal rise during operation helps in understanding the limits of the cell, preventing overheating and enhancing safety. Furthermore, voltage sag and usable energy can be accurately forecasted, enabling better planning for drone missions. This approach not only streamlines the design process but also significantly reduces the risk of failure during critical operations.
