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Molicel 21700 P45B P50B Cylindrical Li Ion Low Temperature Power Battery For Drone

Molicel 21700 P45B P50B Cylindrical Li Ion Low Temperature Power Battery For Drone

Product Introduction

The Molicel 21700 is a premium cylindrical lithium-ion battery series designed for high-performance, high-reliability applications, including three flagship models: P42A, P45B, and P50B. As a leading 21700 battery solution, it delivers consistent nominal voltage of 3.6V, with capacity ranging from 4200mAh (P42A) to 5000mAh (P50B) and maximum continuous discharge current up to 60A (P50B)—making it suitable for high-drain devices. It features ultra-low internal resistance (max 20mΩ, down to 13.5mΩ for P50B) for efficient energy transfer, minimal heat generation, and exceptional thermal stability, operating reliably in temperatures from -40℃ (discharge) to 60℃ (charge).

With compact dimensions (max 21.7mm diameter × 70.2mm height) and lightweight design (max 80g), it integrates easily into battery packs for EVs, electric motorcycles, heavy-lift drones, and backup systems. Whether powering hyper-performance vehicles or industrial backup units, the Molicel 21700 balances power, durability, and fast charging (up to 5C for P50B) to meet diverse high-demand needs.

Product Features

  • Broad capacity range: 4200mAh (P42A) to 5000mAh (P50B) to match varied runtime requirements
  • High discharge capability: 45A (P42A/P45B) to 60A (P50B) continuous discharge for high-power devices
  • Ultra-low internal resistance: Down to 13.5mΩ (P50B) for efficient energy transfer and minimal heat
  • Wide temperature adaptability: Discharges at -40℃ to 60℃, charges at 0℃ to 60℃ for harsh environments
  • Fast charging support: Up to 5C charge rate (P50B) reduces downtime with 1.5-hour standard charge
  • Long cycle life: P50B doubles cycle life to 1400 cycles (vs 700 of predecessors) under 100W discharge
  • High energy density: 242-265 Wh/kg (P50B) for compact, high-capacity battery pack designs
  • Certified safety: Meets UN38.3, IEC62133, CE, and RoHS standards for reliable, compliant use
  • Compact form factor: Standard 21700 size (max 21.7×70.2mm) for easy integration into existing designs

Product Specification Table

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Specification Item</Molicel 21700 P42A</Molicel 21700 P45B</Molicel 21700 P50B</
Nominal Voltage3.6V3.6V3.6V
Standard Capacity4200mAh4500mAh5000mAh
Minimum Capacity4000mAh4300mAh4800mAh
Charging Voltage4.2V4.2V4.2V
Charge Cut-off Voltage2.5V2.5V2.5V
Max Internal Resistance20mΩ20mΩ13.5mΩ
Max Continuous Discharge45A45A60A
Charge Temperature Range0~60℃0~60℃0~60℃
Discharge Temperature Range-40~60℃-40~60℃-40~60℃
Max Weight70g70g70g
Dimensions (D×H)21.7×70.2mm21.55×70.15mm21.55×70.15mm
Energy Density (Gravimetric)N/A242 Wh/kg265 Wh/kg

Molicel 21700 Molicel 21700 Molicel 21700 Molicel 21700 Molicel 21700

Brief Description

  • Product Series: Molicel 21700 Lithium-Ion Battery (P42A/P45B/P50B)
  • Nominal Voltage: 3.6V
  • Capacity Range: 4200mAh – 5000mAh
  • Max Continuous Discharge: 45A – 60A
  • Charging Voltage: 4.2V
  • Operating Temp (Discharge): -40~60℃
  • Max Dimensions: 21.7×70.2mm (D×H)
  • Max Weight: 80g
  • Core Use: High-Power EVs, Drones, Backup Systems

Application Areas

The Molicel 21700 battery series is ideal for high-demand applications across industries, including:

  • Electric Vehicles (EVs): Hyper EVs, racing sports cars, and plug-in hybrids (benefits from 60A discharge)
  • Two-Wheeled Vehicles: Electric motorcycles, motocross bikes, and off-road e-bikes (fast charging & low temp performance)
  • Drones & eVTOLs: Heavy-lift cargo drones and 4-seater eVTOL crafts (sustained 60A output & long cycle life)
  • Backup Systems: Data center, telecom, and AI infrastructure backup units (reliable 75A peak output)
  • Power Tools: Professional cordless drills, grinders, and saws (high discharge for instant torque)
  • Industrial Equipment: Uninterruptible Power Supplies (UPS) and portable industrial devices (wide temp adaptability)

About Battewill

Battewill is a professional manufacturer of customized lithium battery packs, offering reliable power solutions for drones, mobility vehicles, robots, and specialty applications. With factories in Dongguan, offices in Shenzhen and Hong Kong, and after-sales centers in the US, Germany, and Dubai, we serve customers worldwide with high-quality and efficient battery solutions.

We supply LiFePO4 batteries, ternary lithium-ion batteries, and specialty cells for high/low temperature or military-grade applications.

Our lithium batteries are widely used in drones, mobility scooters, wheelchairs, golf carts, robots, medical devices, garden tools, smart home appliances, energy storage systems, and specialty applications.

Yes, we specialize in customized lithium battery packs and BMS solutions based on your voltage, capacity, size, and application requirements.

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