Description
The Crocks Pack Molicel INR 21700 P42A 3.7V 8400mAh 1S2P Li-ion Drone Battery Pack is engineered for high-current performance, stable output, and superior reliability for RC drones, FPV quads, robotics, and compact UAV applications. Built using genuine Molicel P42A power cells, this battery delivers excellent thermal stability, high burst capability, and long cycle life, making it one of the most trusted options for high-drain applications.
With 8400mAh capacity in a compact 1S2P configuration, this pack is ideal for long-endurance electronics, single-cell UAV systems, FPV ground units, receivers, gimbals, and robotics equipment that require powerful and stable single-cell performance.
The battery supports 40A continuous and 50A peak discharge, providing strong performance for devices that demand fast current delivery, smooth voltage output, and consistent reliability.
⭐ Key Features
Built with original Molicel INR 21700 P42A high-drain cells
8400mAh capacity (1S2P configuration) for long runtime
High-discharge output: 40A continuous / 50A peak
Stable 3.7V nominal Li-ion output
Excellent thermal performance under high load
Ideal for FPV quads, RC drones, robotics, receivers & industrial electronics
High energy density with low internal resistance
Long cycle life and consistent voltage stability
Compact, lightweight, rugged design
🔧 Applications
Drone & UAV Systems
Custom single-cell drone power modules
FPV receiver packs
Gimbal & camera power packs
Drone communication and telemetry systems
RC & Hobby Electronics
RC aircraft electronics
FPV goggles power supply
FPV ground station power sources
RC car/boat auxiliary systems
Robotics & Industrial Equipment
Portable instrumentation
Robotic power modules
3.7V industrial handheld devices
IoT and embedded systems
DIY / R&D / Prototyping
Experimental UAV builds
Custom battery pack testing
Engineering and lab projects





