22.2V 4000mAh 6S1P 21700 Lithium Battery Pack for Drone & Robot 20A BMS Protection Rechargeable Li-ion Pack

The HNF Battery 22.2V 4000mAh lithium battery pack is designed for high-performance drone and robot applications. Built with premium 21700 lithium-ion cells in a 6S1P configuration, this battery delivers stable and reliable power output for UAVs, robotic systems, autonomous vehicles, and industrial automation equipment.

Equipped with a built-in 20A BMS (Battery Management System), this 22.2V 4000mAh lithium battery provides comprehensive protection against overcharge, over-discharge, over-current, and short circuit — ensuring safe and consistent performance in demanding environments.

Specifications

Key Features

• High Voltage Output — 22.2V nominal voltage ideal for 6S drone and robot power systems
• Premium 21700 Cells — Higher energy density than standard 18650 cells for longer flight and run time
• Built-in 20A BMS — Full protection against overcharge, over-discharge, short circuit and over-current
• Long Cycle Life — 500+ charge cycles for extended service life
• Lightweight Design — Optimized cell configuration for weight-sensitive drone applications
• OEM Ready — Custom voltage, capacity, connector type, and casing available
• CE & RoHS Certified — Ready for global export to Europe, North America, and beyond

Applications

This 22.2V 4000mAh lithium battery pack is ideal for:

• Consumer and commercial drones / UAVs
• Industrial robots and robotic arms
• Autonomous ground vehicles (AGV)
• RC aircraft and racing drones
• Mobile robotic platforms
• Industrial automation equipment

Why Choose HNF Battery?

HNF Battery specializes in custom lithium battery packs for drone and robot applications. Our 22.2V lithium battery packs are built with Grade-A 21700 cells and undergo rigorous quality testing — including capacity verification, cycle life testing, and safety checks — before shipment.

With over 10 years of manufacturing experience and clients in 30+ countries, we offer full OEM and ODM services including custom voltage, capacity, BMS design, connector type, casing, and private label branding. MOQ starts from 100 units with competitive factory direct pricing.

What’s in the Box

• 1× 22.2V 4000mAh 6S1P 21700 Lithium Battery Pack
• Built-in 20A BMS protection board
• Standard connector (custom connectors available on request)