Samsung 25S Drones Maximise flight time - optimise the cell selection, duty cycle and flight speed to maximise flight time.
Discover the Samsung 25S cell for drones, designed to maximise flight time and optimise performance under demanding conditions.
Value Propositions
Cylindrical 18650 form factor for versatile applications.
Nominal capacity of 9.125 Wh and 2.45 Ah for reliable energy supply.
Volumetric energy density of 526 Wh/l, top-quartile vs median.
Gravimetric power density of 2680 W/kg, ideal for high discharge rates.
Maximum continuous discharge of 35 A for demanding UAV applications.
About the Cell
The Samsung 25S cell features a cylindrical 18650 form factor, making it suitable for various drone applications. With a nominal capacity of 9.125 Wh (2.45 Ah), it provides a reliable energy source for extended flight times. The cell boasts a volumetric energy density of 526 Wh/l, placing it in the top-quartile compared to the median of 541.67 Wh/l in the database. Additionally, its gravimetric energy density of 194.149 Wh/kg is competitive, ensuring lightweight designs for drones. The volumetric power density of 7266 W/l is among the highest in the database, supporting high-performance applications. Furthermore, the maximum continuous discharge rate of 35 A allows for robust performance in demanding scenarios, making it an excellent choice for UAV battery pack design.
Application Challenges
In the realm of drones, maximising flight time is critical. This involves optimising cell selection, duty cycle, and flight speed to ensure that drones can operate efficiently and effectively. The Samsung 25S cell addresses these challenges by providing a high energy density, which is essential for long endurance drone batteries. The ability to sustain high discharge rates without overheating is crucial for maintaining performance during intensive missions. Furthermore, the lightweight nature of the cell contributes to improved UAV mission endurance, allowing for longer flights without the need for excessive battery weight. Accurate battery state of charge (SoC) prediction is also vital to prevent mid-air failures, especially in extreme environments.
Why this Cell
The Samsung 25S cell is specifically designed to meet the demands of drone applications. Its nominal capacity of 9.125 Wh and maximum continuous discharge of 35 A make it suitable for high energy density drone batteries. With a volumetric energy density of 526 Wh/l, it exceeds the median of 541.67 Wh/l, ensuring that drones can carry more payload while maintaining flight efficiency. The gravimetric power density of 2680 W/kg is also impressive, allowing for quick bursts of power when needed. This cell is ideal for UAV battery optimisation, as it balances weight and performance effectively, making it a top choice 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 Samsung 25S cell in drone applications. By modelling load profiles, engineers can predict how the cell will behave under various conditions, including thermal rise and voltage sag. This allows for the selection of the most suitable cell for specific missions, ensuring that drones can achieve their maximum flight time. For instance, simulating different duty cycles helps identify the optimal charge and discharge rates, which is essential for battery thermal management for drones. Additionally, these simulations can provide insights into usable energy across the entire flight envelope, enabling accurate predictions of mission feasibility based on temperature and state of charge. This predictive capability is vital for ensuring reliability in critical missions, such as defence or emergency operations.
