MOLICEL INR-21700-P42A – Reliable High-Drain 21700 Lithium-Ion Cell

The Molicel P42A Cell is built for applications that require strong current delivery, excellent thermal stability, and dependable long-term performance under heavy electrical load conditions.

Designed using advanced 21700 lithium-ion technology, this high-performance power cell combines strong discharge capability with efficient energy density, making it highly suitable for demanding electronic systems and high-drain battery pack applications.

Whether used in FPV drones, portable power systems, robotics, electric mobility projects, or industrial electronics, the cell delivers stable and consistent performance with excellent efficiency.

Its robust 45A continuous discharge capability makes it one of the most trusted high-drain lithium-ion cells for professional and enthusiast-level battery builds.

High-Drain 4200mAh Power Performance

The Molicel P42A Cell delivers a balanced combination of high current output and stable energy storage performance.

Key electrical performance includes:

• Typical Capacity: 4200mAh
• Nominal Voltage: 3.6V
• Maximum Charge Voltage: 4.2V
• Continuous Discharge Current: 45A

This allows the cell to maintain:

• stable voltage delivery
• reduced voltage sag
• efficient power transfer
• consistent high-load operation

As a result, the battery performs exceptionally well in demanding power systems requiring reliable continuous current output.

Optimized for High-Performance Applications

Unlike standard lithium-ion cells focused mainly on low-current usage, the Molicel P42A Cell is specifically engineered for high-drain environments where power consistency is critical.

It is highly suitable for:

• FPV drone battery packs
• DIY lithium battery projects
• electric mobility systems
• robotics applications
• industrial electronics
• high-power flashlights
• portable energy systems

Its optimized internal chemistry helps maintain stable performance even during aggressive power demand.

Fast Charging & Reliable Thermal Stability

The Molicel P42A Cell supports efficient charging performance while maintaining strong thermal reliability.

Charging Performance

• Standard Charge Current: 4.2A
• Standard Charge Time: Approximately 1.5 Hours

Temperature Range

• Charging Temperature: 0°C to 45°C
• Discharge Temperature: -40°C to 60°C

This wide operating temperature range allows the battery to function reliably across demanding environmental conditions.

The stable thermal behavior also helps improve long-term operational safety and performance consistency.

Low Resistance for Better Efficiency

The Molicel P42A Cell uses a low-impedance internal structure to improve current delivery and overall power efficiency.

Typical Impedance

• AC Impedance: 10mΩ
• DC Impedance: 16mΩ

Lower internal resistance helps:

• improve voltage stability
• reduce heat generation
• maintain cleaner power output
• support stronger current delivery

This becomes especially important in high-performance battery systems operating under heavy electrical load.

Advanced 21700 Energy Density Technology

Compared to many older battery formats, the 21700 platform offers better energy density and improved overall battery efficiency.

Energy Density Performance

• Volumetric Energy Density: 615Wh/l
• Gravimetric Energy Density: 230Wh/kg

This allows users to build:

• higher-capacity battery packs
• lighter power systems
• more compact energy solutions
• improved runtime configurations

The efficient energy-to-weight ratio makes the cell especially valuable for mobile and aerial electronic systems.

Technical Specifications

Ideal Applications

The Molicel P42A Cell is perfect for:

• FPV drone battery packs
• High-drain electronics
• DIY battery systems
• Robotics projects
• Portable power solutions
• Industrial battery packs
• Electric mobility applications

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