Description
The Crocks Pack – Molicel INR21700 P42A 14.8V 12600mAh 135A 4S3P Triangle Li-ion Battery Pack
is a robust, high-capacity Li‑ion battery pack built for demanding drone and UAV applications. This pack uses twelve Molicel INR‑21700 P42A cells, arranged in a 4‑series by 3‑parallel (4S3P) configuration, delivering a nominal voltage of 14.8 V and a total capacity of 12.6 Ah. This combination of voltage and capacity enables both endurance and power, making it ideal for long-range flights, heavy-lift drones, or rigs requiring stable high-voltage supply.
Each P42A cell offers a typical capacity of 12600 mAh and a continuous discharge current rating of up to 45 A, according to the official datasheet. Thanks to this, the pack is rated for 135 A continuous discharge
Physically, each cell has a max diameter of 21.7 mm and a height of 70.2 mm. The pack’s triangle form factor is especially suited for drone frames, providing a compact and stable layout that integrates well into the fuselage or undercarriage.
For safety and longevity, the pack includes a 4-cell balance connector, enabling balanced charging across all series groups. The wiring is robust enough to handle high currents
Whether you’re building a long-endurance FPV rig, a survey drone, or a heavy-lift UAV, this 4S3P pack brings together premium cells, high capacity, and high discharge performance in a compact, efficient package.
Key Features
14.8 V (4S) high-voltage pack
High capacity: 12600 mAh
High current discharge: 135 A continuous spec
Uses Molicel INR‑21700 P42A high-performance cells Molicel INR‑21700 P42A
Low internal resistance (~10 mΩ) for efficient power delivery
Balanced charging supported (4‑cell balance connector)
Triangle form factor—compact, frame‑friendly
Built for demanding drone/UAV environments
Applications
Long‑range or endurance drones
Heavy-lift UAVs (payload, cameras, sensors)
High-thrust FPV / racing drones
Custom DIY drone / UAV builds needing high voltage + capacity
Fixed-wing RC aircraft where voltage headroom benefits powertrain
