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BAK N18650CNP Maximise flight time - optimise the cell selection, duty cycle and flight speed to maximise flight time.

Discover the BAK N18650CNP cell for UAVs, designed to maximise flight time and optimise performance in demanding applications. Learn more now.

Value Propositions

  • Cylindrical 18650 form factor with a nominal capacity of 9.0 Wh.

  • Gravimetric energy density of 191 Wh/kg, around median for high-performance cells.

  • Volumetric energy density of 525 Wh/l, top-quartile vs median.

  • Maximum continuous discharge of 30 A, among the highest in the database.

  • Standard charge current of 1.25 A, suitable for efficient charging.

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About the Cell

The BAK N18650CNP is a cylindrical lithium-ion cell designed specifically for UAV applications. With a nominal capacity of 9.0 Wh and a mass of 47 g, it offers a gravimetric energy density of 191 Wh/kg, which is around the median compared to other cells in the market. The volumetric energy density is impressive at 525 Wh/l, placing it in the top-quartile of available options. This cell is engineered for high performance, featuring a maximum continuous discharge of 30 A, which is among the highest in the database, making it ideal for demanding UAV applications. The standard charge current of 1.25 A allows for efficient charging, while the maximum continuous charge current of 5.0 A ensures quick turnaround times for operational readiness.

Application Challenges

In the EVTOL sector, maximising flight time is critical. The BAK N18650CNP cell addresses this challenge by optimising cell selection, duty cycle, and flight speed. The ability to deliver high energy density is essential for extending flight durations, particularly in demanding environments. UAVs require batteries that can perform reliably under various conditions, including extreme temperatures and varying payloads. The challenge lies in ensuring that the battery can sustain high discharge rates while maintaining thermal stability to prevent overheating. This cell's specifications are tailored to meet these needs, ensuring that UAVs can achieve their operational goals without compromising safety or performance.

Why this Cell

The BAK N18650CNP cell is an excellent choice for EVTOL applications focused on maximising flight time. With a volumetric energy density of 525 Wh/l, it is in the top-quartile compared to the median of 541 Wh/l in the database. This high energy density allows for longer flight durations, which is crucial for UAV operations. Additionally, the maximum continuous discharge rate of 30 A ensures that the cell can handle demanding power requirements, making it suitable for high-performance UAVs. The gravimetric energy density of 191 Wh/kg is around the median, providing a balanced approach to weight and energy capacity, essential for maintaining flight efficiency.

How Model-Based Design Helps

Simulation and model-based design play a vital role in optimising the selection of the BAK N18650CNP cell for UAV applications. By modelling load profiles, thermal behaviour, and voltage response, engineers can predict how the cell will perform under various conditions. This approach allows for accurate assessments of usable energy and helps identify potential issues such as overheating or insufficient power delivery. For instance, simulating different duty cycles can reveal the optimal charge and discharge rates, ensuring that the UAV can operate efficiently throughout its mission. This data-driven approach reduces the risk of trial-and-error testing, enabling manufacturers to select the best cell for their specific needs with confidence.

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