Ampace 21700A Drones Maximise flight time - optimise the cell selection, duty cycle and flight speed to maximise flight time.
Discover the Ampace 21700A cell for drones, designed to maximise flight time and optimise performance in demanding applications.
Value Propositions
Cylindrical 21700 form factor for compact design.
Nominal capacity of 14.8 Wh and 4.0 Ah for reliable energy.
Top-quartile volumetric power density of 6,628 W/l.
Gravimetric energy density of 211 Wh/kg for lightweight solutions.
Maximum continuous discharge of 45 A for high performance.
About the Cell
The Ampace 21700A cell features a cylindrical 21700 form factor, providing a nominal capacity of 14.8 Wh (4.0 Ah). With a volumetric energy density of 589 Wh/l, it stands out in the market, being in the top-quartile compared to the median of 541.67 Wh/l. The gravimetric energy density of 211 Wh/kg is also competitive, being around the median of 210 Wh/kg. This cell is designed for high performance, with a maximum continuous discharge of 45 A, which is significantly above the median of 30 A, making it suitable for demanding drone applications. Additionally, the volumetric power density of 6,628 W/l is among the highest in the database, allowing for efficient energy delivery during flight. The standard charge current of 2.0 A and maximum continuous charge of 8.0 A ensure quick recharging capabilities, essential for operational efficiency in drone missions.
Application Challenges
In the context of drones, maximising flight time is critical. The Ampace 21700A cell addresses this challenge by optimising cell selection, duty cycle, and flight speed. The ability to deliver high energy density is vital for extending flight durations, especially in applications such as industrial inspections or emergency response. Drones often operate in extreme environments, where battery performance can be compromised. Therefore, the Ampace 21700A's robust thermal management and high discharge capabilities are essential to prevent overheating and ensure reliable operation. The challenge lies in balancing weight and energy capacity to achieve optimal flight times, making the selection of the right battery cell crucial for mission success.
Why this Cell
The Ampace 21700A cell is an excellent choice for drone applications aiming to maximise flight time. With a maximum continuous discharge of 45 A, it is in the top-quartile compared to the median of 30 A, allowing drones to handle demanding tasks without compromising performance. The high volumetric energy density of 589 Wh/l, which is significantly above the median of 541.67 Wh/l, ensures that drones can carry out longer missions without frequent recharges. Additionally, the gravimetric energy density of 211 Wh/kg is competitive, providing lightweight solutions that enhance overall drone efficiency. This cell's design is tailored for UAV battery optimisation, making it a prime candidate for custom UAV battery packs that require high energy density and lightweight characteristics.
How Model-Based Design Helps
Simulation and model-based design play a crucial role in optimising the performance of the Ampace 21700A cell for drone applications. By modelling load profiles, engineers can predict how the cell will perform under various conditions, including different flight speeds and duty cycles. This allows for accurate predictions of thermal behaviour and voltage sag, ensuring that the cell can deliver the required energy throughout the flight. For instance, simulating the thermal rise during high discharge scenarios helps in selecting the right cell for specific missions, preventing overheating and ensuring safety. Additionally, using cell-specific data enables precise calculations of usable energy, which is vital for mission planning and execution. This approach reduces the risk of mid-air failures and enhances operator confidence in the drone's readiness for critical tasks.
