Molicel INR-21700-P42A 4200mAh Li-Ion Cell

The Molicel INR-21700-P42A is a single 21700 Li-ion cell for FPV battery builds and other 21700-based projects that need more runtime from one cylindrical cell. With 4200mAh on a 1S cell, it suits endurance-focused custom packs where capacity matters more than compact size. It is supplied as a bare wrapped cell with printed model and capacity markings, polarity identification and safety text, which helps when sorting cells and assembling matched packs.

Key features

• 4200mAh capacity gives strong runtime for 1S lithium-ion packs and other 21700 builds.

• 21700 cell format fits builds designed around larger cylindrical cells rather than 18650 packs.

• Single-cell 1S format suits custom battery assembly and replacement cell use.

• Factory wrap includes model, capacity and polarity marking for easier identification during build work.

• 11C rating gives a clear discharge reference for builders matching the cell to their current draw.

Specifications

• Brand: Molicel

• Cell Count: 1S

• Capacity: 4200 mAh

• C-Rating: 11 C

• Cell Format: 21700

• Made in India: No

Choose this cell only if your pack design accepts a 21700 cylindrical cell and you are building a 1S lithium-ion solution; it is not a plug-and-play LiPo pack.