Description
The Crocks Pack Molicel INR 21700 P42A 11.1V 4200mAh 3S1P 40A/50A Discharge Li-ion Drone Battery Pack (Triangle)
is a high-performance Li-ion battery pack designed specifically for drone and RC applications. Built with three genuine Molicel INR‑21700 P42A cylindrical cells in a 3‑series (3S) configuration, this pack delivers a nominal voltage of 11.1 V and a total capacity of 4200 mAh, providing a robust energy reservoir for extended flight times.
Each P42A cell boasts a typical capacity of 4200 mAh and supports a continuous discharge current of up to 45 A, with the pack itself rated for 40 A continuous and 50 A peak discharge. This ensures stable, high-current performance during aggressive maneuvers or sustained power draw, while maintaining thermal and voltage stability under load.
The pack is equipped with a balance connector (4‑pin JST XH) for safe and accurate balancing during charging, and uses a durable discharge connector (Amass XT‑60) to support reliable high-current delivery. Its compact triangle form-factor makes it well-suited for mounting in racing or endurance drones where space and weight optimization is critical.
Physically, the underlying Molicel P42A cells measure 21.7 mm in diameter and 70.2 mm in height, each weighing around 67 g. Therefore, the total pack weight (excluding leads and connectors) is approximately 200–240 g, depending on the build.
Key features and applications:
High energy density for long flight times
High discharge capability: supports both continuous and peak demands
Low internal resistance, which reduces voltage sag under load
Balanced charging with JST XH connector
Compact and robust mechanical layout for RC / drones
Use this battery pack for endurance drones, FPV racing, long-range quadcopters, aerial photography platforms, and other high-performance RC systems. With proper BMS or balance charging, it delivers both power and reliability for demanding flight missions.
