21700 Molicel P42A Battery — Universal 4200 mAh Battery

Molicel P42A 21700 — a powerful 21700 form factor lithium-ion battery with a nominal capacity of 4200 mAh, combining high energy density, stable voltage, and reliability. This power cell is designed for applications requiring high discharge currents and stable operation under load: FPV drones, electric vehicles, professional electronics, and other devices with increased power needs.

Key Features and Benefits:

• Nominal capacity: 4200 mAh — long battery life for drones and other devices;
• Nominal voltage: 3.7 V — standard for lithium-ion cells;
• Maximum discharge current: 45 A — suitable for high-load applications and rapid maneuvers in FPV flights;
• Supports fast charging up to 8 A — reduces energy recovery time between flights or operations;
• Form factor: 21700 — modern size with increased energy capacity compared to 18650;
• Chemistry: lithium-ion — balanced characteristics of capacity, current, and cycle life.

Molicel cells are known for stable voltage characteristics and long service life, making the P42A battery a popular choice among electronics manufacturers, drone enthusiasts, and electric vehicle specialists. Thanks to its high maximum permissible discharge current and the ability to charge with a current of up to 8 A, the battery demonstrates excellent performance in peak operating modes and during intensive charge-discharge cycles.

Brand: Phoenix drones. Model: Molicel P42A. Product type: Drones & Quadcopters > Drone Batteries. Product ID: 3078.

Usage Recommendations

The battery is ideal for FPV drones and other high-performance systems requiring short-term current peaks up to 45 A. For safe and long-lasting operation, we recommend using chargers compatible with 21700 parameters and supporting currents up to 8 A, monitoring the temperature during charging, and avoiding deep discharge. We also advise storing the battery in a dry, cool place and using balancing or compatible charging systems to extend its cycle life.

This battery will be an excellent choice for those seeking a combination of capacity, high discharge current, and fast charging in a compact 21700 form factor. The Molicel P42A ensures stable voltage under load and endurance for many charge-discharge cycles, making it a worthwhile investment for professional pilots and amateurs who demand reliability and power in every flight or project. Appreciate the benefits of high energy density, fast recharge capability, and safe operation under heavy loads — all of which allow the Molicel P42A to withstand intensive operating modes and ensure stable performance during peak loads.

Other products in this category here Drone Batteries