Tenpower 50SG 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.
Discover the Tenpower 50SG cell for drones, designed for fast charging without overheating, ensuring safety and efficiency in UAV applications.
Value Propositions
Cylindrical 21700 form factor for compact design.
Nominal capacity of 18.0 Wh and 5.0 Ah for reliable performance.
Top-quartile volumetric power density of 4,240 W/l for rapid energy delivery.
Gravimetric energy density of 257 Wh/kg, supporting lightweight UAV designs.
Maximum continuous discharge of 30.0 A, ensuring high performance under load.

About the Cell
The Tenpower 50SG cell features a cylindrical 21700 form factor, providing a nominal capacity of 18.0 Wh and 5.0 Ah. It boasts a volumetric energy density of 707 Wh/l, which is significantly above the database median of 542 Wh/l, making it suitable for high energy density drone applications. The gravimetric energy density of 257 Wh/kg is also impressive, positioning it well for lightweight drone battery packs. Additionally, the cell's volumetric power density of 4,240 W/l is among the highest in the database, allowing for rapid energy delivery during critical operations. With a maximum continuous discharge of 30.0 A, the 50SG is designed to handle demanding UAV applications efficiently.
Application Challenges
In the realm of drones, fast charging presents unique challenges. The need to charge batteries quickly without overheating is paramount, as overheating can lead to lithium plating, which degrades battery performance and poses safety risks. The Tenpower 50SG cell addresses these challenges with its high energy density and robust discharge capabilities. The ability to maintain performance under rapid charge conditions is essential for UAVs, particularly in applications requiring long endurance and quick turnaround times. The 50SG's design mitigates risks associated with thermal management, ensuring that drones can operate effectively in various environments without compromising safety.
Why this Cell
The Tenpower 50SG cell is ideal for fast charging in drones due to its high volumetric power density of 4,240 W/l, which is +109% vs the database median of 2,029 W/l. This allows for quick energy delivery, essential for UAVs that require rapid recharging between missions. Additionally, its maximum continuous discharge of 30.0 A ensures that the cell can handle high current demands without overheating, addressing the critical challenge of thermal management in fast charging scenarios. The cell's gravimetric energy density of 257 Wh/kg supports lightweight designs, making it a preferred choice for custom UAV battery packs.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising battery performance for drones. By simulating load profiles and thermal behaviour, engineers can predict how the Tenpower 50SG cell will perform under various conditions. This includes modelling heat generation during fast charging and assessing voltage sag under load. Such simulations enable the selection of the most suitable cells for specific applications, ensuring that the chosen battery can deliver the required thrust and energy without overheating. This predictive capability is vital for mission-critical operations, allowing operators to make informed decisions about battery readiness and performance.


