Tenpower 25PG Drones Fast charge of the batteries - how to charge the battery quickly without overheating the cells or causing lithium plating which could degrade the battery or cause it to catch fire.
Explore the Tenpower 25PG cell for drones, designed for fast charging without overheating, ensuring safety and efficiency in UAV applications.
Value Propositions
Cylindrical 18650 form factor for compact design.
Nominal capacity of 9.0 Wh, ideal for drone applications.
Top-quartile volumetric power density of 4,059 W/l for rapid energy delivery.
Gravimetric energy density of 200 Wh/kg, supporting lightweight UAV designs.
Maximum continuous discharge of 20 A, suitable for high-performance drones.
About the Cell
The Tenpower 25PG cell features a cylindrical 18650 form factor, providing a nominal capacity of 9.0 Wh and a nominal current capacity of 2.5 Ah. With a volumetric energy density of 507 Wh/l and a gravimetric energy density of 200 Wh/kg, this cell is designed for high energy applications. The volumetric power density of 4,059 W/l places it among the highest in the database, making it ideal for fast charging scenarios. Additionally, it has a maximum continuous discharge of 20 A, which is in the top-quartile compared to the median of 30 A in the database. This combination of features ensures that the 25PG cell meets the demanding requirements of drone applications, particularly in terms of energy efficiency and performance.
Application Challenges
In the context of drones, fast charging presents a significant challenge. The need to charge batteries quickly without overheating is critical to ensure safety and longevity of the cells. Overheating can lead to lithium plating, which not only degrades battery performance but also poses a fire risk. The Tenpower 25PG cell addresses these challenges with its high maximum continuous charge rate of 6.0 A, which is 2.4 C, allowing for efficient charging while maintaining thermal stability. This is crucial for applications such as UAV battery pack design, where rapid turnaround times are essential for operational efficiency. Furthermore, the lightweight design of the 25PG cell supports the development of high energy density drone batteries, enabling longer flight times and improved mission endurance.
Why this Cell
The Tenpower 25PG cell is specifically designed to meet the challenges of fast charging in drone applications. With a maximum continuous charge rate of 6.0 A, it allows for quick recharging without compromising safety. This is particularly important in UAV battery optimization, where the balance between charge time and thermal management is critical. The cell's volumetric energy density of 507 Wh/l is around the median of 541 Wh/l in the database, ensuring that it provides ample energy for extended missions. Additionally, its gravimetric power density of 1,600 W/kg is in the top-quartile compared to the median of 750 W/kg, making it suitable for high discharge rate UAV batteries. This combination of features makes the 25PG an excellent choice for custom UAV battery packs, ensuring reliability and performance in demanding environments.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising the performance of the Tenpower 25PG cell for drone applications. By modelling load profiles and thermal behaviour, engineers can predict how the cell will perform under various conditions, including rapid charging scenarios. This approach allows for accurate assessments of voltage sag, heat generation, and usable energy, ensuring that the selected cell meets the specific requirements of the mission. For instance, simulations can identify the optimal charge rates that prevent overheating while maximising energy delivery. This predictive capability is essential for UAV battery performance testing, enabling manufacturers to select the best cells for their designs without the need for extensive trial-and-error testing. Ultimately, this leads to safer, more efficient drone operations and enhances overall mission success.
