Description
Crocks Pack Gen X INR 21700 P42A 14.8V 4200mAh 4S1P 70A/90A Discharge Li-ion Drone Battery Pack
is a high‑voltage, high-performance Li-ion battery pack optimized for drone and RC applications that require both endurance and strong power out‑put. It uses four genuine Molicel INR‑21700 P42A cells wired in a 4-series configuration to provide a nominal pack voltage of 14.8 V (4 × ~3.6 V)
Each P42A cell offers a continuous discharge capability of up to 45 A per the datasheet. The pack is conservatively rated for 70 A continuous discharge, with a spec for 90 A peak bursts, providing good headroom for aggressive throttle
Physical cell specifications: each cell has a typical capacity of 4200 mAh , a nominal voltage of 3.6 V , and a maximum diameter of 21.7 mm and height of 70.2 mm. The cell’s weight is up to 70 g.
The pack is designed with a 4-cell balance connector for safe and even charging across all series cells, and a rugged discharge lead capable of handling high current loads. Thanks to its robust build and Molicel’s high-quality cells, this pack is well-suited for performance drone builds, including racing quads, long‑range RTF drones
Key Features
Nominal Voltage: 14.8 V (4S)
Capacity: 4200 mAh
Continuous Discharge: 70 A (design spec)
Peak/Burst Discharge: 90 A
High-performance Molicel INR 21700 P42A cells Molicel INR‑21700 P42A
Low internal resistance (~10 mΩ) for efficient high-current operation
Balanced charging via a 4-cell balance connector
Compact, vibration-resistant build
Applications
FPV racing drones (4S builds)
High-thrust quadcopters
Medium-size fixed-wing RC aircraft
DIY UAVs requiring elevated voltage and peak current
Performance RC vehicle power systems
