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Tenpower 40TG Weight v power trade off in pack design - how to pick the right balance.

Explore the Tenpower 40TG cell for UAV applications, optimising weight and power for enhanced drone performance and endurance.

Value Propositions

  • Cylindrical 21700 form factor for efficient design.

  • Nominal capacity of 14.4 Wh and 4.0 Ah for reliable energy delivery.

  • Volumetric energy density of 575 Wh/l, top-quartile vs median.

  • Gravimetric power density of 1,881 W/kg, among the highest in database.

  • Maximum continuous discharge of 35 A, ensuring robust performance.

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About the Cell

The Tenpower 40TG cell features a cylindrical 21700 form factor, optimised for UAV applications. With a nominal capacity of 14.4 Wh and 4.0 Ah, it delivers reliable energy for various drone operations. The cell boasts a volumetric energy density of 575 Wh/l, placing it in the top-quartile compared to the database median of 542 Wh/l. Additionally, its gravimetric energy density of 215 Wh/kg is around the median, providing a balanced performance for weight-sensitive applications. The cell's volumetric power density of 5,030 W/l is among the highest in the database, ensuring it can handle demanding power requirements efficiently. With a maximum continuous discharge of 35 A, the 40TG is designed to support high-performance UAV operations, making it an ideal choice for drone battery design and UAV battery pack design.

Application Challenges

In the context of EVTOL and the weight versus power trade-off in pack design, the Tenpower 40TG cell addresses critical challenges. UAV applications often require a careful balance between battery weight and power output to maximise flight time and efficiency. The ability to deliver high energy density while maintaining a lightweight profile is essential for long endurance drone batteries. The 40TG's specifications allow for effective UAV battery optimisation, ensuring that drone manufacturers can achieve the desired performance without compromising safety or thermal management. The challenge lies in selecting the right cell that meets the demands of various mission profiles, especially in extreme environments where reliability is paramount.

Why this Cell

The Tenpower 40TG cell stands out in the UAV market due to its impressive metrics. With a maximum continuous discharge of 35 A, it is positioned in the top-quartile compared to the database median of 30 A, making it suitable for high discharge rate UAV batteries. Its volumetric energy density of 575 Wh/l is also noteworthy, as it exceeds the median, allowing for lightweight drone battery packs that do not sacrifice performance. The cell's gravimetric power density of 1,881 W/kg is among the highest, ensuring that it can deliver the necessary power for demanding applications. This combination of high energy and power density makes the 40TG an excellent choice for custom UAV battery packs, enabling manufacturers to design efficient and effective battery solutions.

How Model-Based Design Helps

Simulation and model-based design play a crucial role in optimising the selection of the Tenpower 40TG cell for UAV applications. By modelling load profiles, thermal behaviour, and voltage response, engineers can accurately predict the cell's performance under various conditions. This approach allows for the identification of the best battery configurations that maximise flight time while preventing overheating and ensuring safe operation. For instance, simulations can reveal how the 40TG cell performs in different temperature scenarios, aiding in the design of battery thermal management systems for drones. Additionally, by analysing energy consumption across different flight speeds, designers can optimise the drone's powertrain efficiency, ensuring that the UAV can achieve its mission objectives reliably. Overall, simulation enhances the decision-making process, enabling manufacturers to select the right cell for their specific needs without the risks associated with trial-and-error testing.

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