High Discharge 6S 4000mAh LiPo Battery China Factory Suppliers

Looking for reliable high-performance power? Our China factory supplies premium 6S 4000mAh LiPo batteries with 25C discharge for drones and robotics. As leading suppliers, we use A-grade cells to ensure rapid power delivery and stability. Order directly from the factory for certified quality and durability.

SupplierBeijing KNS New Energy Technology Co.,Ltd.www.knsbattery.com

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About this product

Product information from the supplier.

The Original Factory 25C 4000mAh 6S High Discharge LiPo Battery is a high-performance energy solution specifically engineered for demanding aerial and ground-based applications. Designed for FPV racing drones, RC vehicles, and professional robotics, this 6S (22.2V) power pack ensures sharp throttle response and consistent power delivery under heavy operational loads, making it an essential choice for competitive and industrial users.

Manufactured in an ISO-certified facility using A-grade cells, this battery strikes a perfect balance between weight, practical capacity, and high-current output. Whether you are aiming for a high-speed racing lap or stabilizing an industrial UAV, the KNS-25C-4AH6S provides the reliability and stability required for mission-critical performance across a wide range of operating temperatures.

Detailed Parameters

Model	KNS-25C-4AH6S	Voltage	22.8V
Capacity	4000mAh	Continuous Discharge	15C
Max Discharge	25C	Charge Rate	1-4C
Energy / Density	91.2Wh / 147Wh/kg	Weight	620g
Operating Temp	Discharge: -20℃ to 55℃	Cycle Life	500 cycles

Key Advantages

Rapid Power Delivery

A 25C max discharge rate ensures immediate throttle response and stable power for FPV racing and high-load drones.

Optimized Flight Time

The 4000mAh capacity provides an ideal 5–15 minute flight window, balancing weight with extended runtime.

A-Grade Cell Quality

Utilizing premium A-grade cells for superior voltage stability and consistency across the entire discharge cycle.

Wide Temp Adaptability

Engineered to perform reliably in extreme environments, from -20℃ for cold weather to 55℃ for high-heat ops.

Versatile Compatibility

Perfectly suited for RC cars, boats, helicopters, and industrial robotics requiring high-discharge LiPo power.

Full Traceability

Each battery pack features a unique serial number, ensuring quality control and traceability from cell to finish.

Product Gallery

Management Platforms

Automated Assembly

Precision coating, stacking, and packaging via fully automated production lines.

R&D Innovation

Dedicated team focusing on high energy density (270–400Wh/kg) and high-voltage cells.

100% Cell Testing

Rigorous screening of capacity, internal resistance, and voltage matching for every cell.

Safety Validation

Strict tests including overcharge, short circuit, crush, and thermal stability verification.

Global Certification

ISO 9001:2015, UN38.3, and MSDS certified for safe international transport.

Customization Options

Flexible connectors (XT90, AS150U, QS8) and BMS options (CAN, RS485, UART) available.

Investment Return Comparison

Metric	Standard LiPo Battery	KNS Factory High-C Battery
Cycle Life	100-200 cycles	Up to 500 cycles
Voltage Stability	Moderate drop under load	High stability / Low sag
Quality Control	Batch sampling	100% individual cell testing
Safety Standards	Basic compliance	UN38.3, MSDS, ISO certified
TCO (Total Cost)	High replacement rate	Lower cost per flight hour

Frequently Asked Questions

Q: What is the difference between continuous and max discharge rates?

Continuous discharge (15C) is the current the battery can maintain safely for extended periods, while Max discharge (25C) is the peak current it can handle for short bursts, such as during sudden acceleration or maneuvers.

Q: How do I maintain the cycle life of these LiPo batteries?

To reach the 500-cycle potential, avoid deep discharging (do not drop below 3.2V per cell), store them at a storage voltage (approx. 3.8V), and follow the recommended 1-4C charge rate.

Q: Can these batteries be used in extremely cold weather?

Yes, this battery is designed to operate in discharge conditions as low as -20℃, making it suitable for winter operations and high-altitude UAV missions.

Q: Are these batteries safe for international air shipping?

Absolutely. Our products are UN38.3 and MSDS certified and manufactured according to IEC 62133 and UN3480 regulations for safe global logistics.

Q: Can the connectors be customized for my specific drone?

Yes, we offer a wide variety of customizable connectors including XT60, XT90, AS150U, and QS8, as well as various BMS communication protocols like CAN and UART.

Q: What is the energy density of this specific model?

The KNS-25C-4AH6S has an energy density of 147Wh/kg, providing a high power-to-weight ratio ideal for FPV and RC performance applications.