Description
Crocks Pack – Molicel INR21700 P42A 14.8V 16800mAh 184A 4S4P Triangle Li-ion Battery Pack
is a high-capacity, high-current Li-ion battery pack built for powerful drones, UAVs, and RC systems. It uses 16 Molicel INR‑21700 P42A cells, arranged in a 4-series × 4-parallel (4S4P) configuration. This gives you a nominal voltage of 14.8 V and a massive 16.8 Ah capacity, making it ideal for long-duration flights and high-performance missions.
Despite the high capacity, the pack is designed for serious current: with four cells in parallel, this design allows for a continuous discharge current spec of around 184 A (design‑spec), assuming each P42A cell provides its rated continuous current. The P42A is rated for 45 A continuous discharge per cell according to its datasheet. Because of the parallel arrangement, the total pack can support very high loads while maintaining more stable voltage under heavy draw.
The P42A cells themselves have a typical capacity of 4,200 mAh, a nominal voltage of 3.6 V, and a very low internal resistance (~10 mΩ AC). The pack includes a 4‑cell balance connector for safe charging, and the triangle form factor makes it efficient to mount in drone frames, giving both structural support and space optimization.
This pack is well-suited for heavy-lift drones, long-range FPV builds, or any custom UAV where both high voltage and high capacity are needed. Combined with high-current draw capability, it offers both endurance and performance.
Key Features
14.8 V (4S) configuration
16,800 mAh capacity (16.8 Ah)
High Discharge: ~184 A (design spec based on 4P of 45 A cells)
Uses Molicel INR‑21700 P42A cells Molicel INR 21700 P42A
Low Internal Resistance: ~10 mΩ (AC) per cell
Balanced Charging: 4‑cell balance lead
Triangle Form Factor: Mechanical stability + efficient mounting
Durable Build: For UAV / high‑vibration use
