Product Overview

The EVE 21700 40P (Model: INR21700 40P) is a high-performance cylindrical lithium-ion cell, engineered by EVE—a trusted leader in lithium battery technology. With a nominal discharge capacity of 4000mAh, nominal voltage of 3.6V, and efficient CC-CV charging method, it supports 35A continuous discharge (without temperature cut-off) and 50A discharge (with 80℃ temperature cut-off), delivering instant and stable power for high-demand devices. Its ultra-low AC impedance (<12mΩ @1kHz) minimizes energy loss, while its standard 21700 form factor (diameter 21.15±0.10mm, max weight ≤70g) ensures easy integration. With excellent wide-temperature characteristics (charge: 0~60℃, discharge: -20~80℃) and automatic production consistency, it is widely favored in electric tools and perfectly suited for intelligent robots, vacuum cleaners, electric car wash guns, and aerial model drones, especially in the booming cordless electric tool market.

Key Features

• Genuine EVE Quality: 100% authentic EVE 21700 40P cells, fully compliant with EVE's official datasheet, manufactured with automatic production for good consistency and strict quality control.

• 35A Ultra-High Discharge: Supports 35A continuous discharge (no temperature cut-off) and 50A discharge (80℃ temperature cut-off), delivering strong power for electric tools, drones, and electric car wash guns—highly popular among electric tool users.

• Ultra-Low Internal Resistance: AC impedance <12mΩ @1kHz, reducing energy loss, improving power conversion efficiency, and ensuring responsive performance for intelligent robots and drones.

• Stable 4000mAh Capacity: 4000mAh nominal capacity, providing long runtime for vacuum cleaners, intelligent robots, and drones, balancing high power and endurance.

• Excellent Wide-Temperature Adaptability: Stable operation from -20℃ to 80℃ (discharge) and 0℃ to 60℃ (charge), suitable for indoor and outdoor use, even in harsh environments like low-temperature drone flights.

• Easy Integration: Standard 21700 cylindrical size (21.15±0.10mm diameter), lightweight (≤70g), easy to assemble into custom battery packs for various devices.

• Recommended Applications

• Engineered for high discharge and stable performance, the EVE 21700 40P is highly popular in electric tools and ideal for:

• Intelligent Robots: Ultra-low internal resistance and stable discharge ensure responsive operation and long runtime, supporting continuous work of service robots, industrial robots, and household intelligent robots.

• Vacuum Cleaners: 4000mAh capacity and stable power output provide long working hours, while high discharge capability supports strong suction for deep cleaning, adapting to home and commercial cleaning scenarios.

• Electric Car Wash Guns: 35A high discharge delivers strong and continuous power, ensuring stable water pressure for efficient car washing, suitable for home and professional car wash use.

• Aerial Model Drones: High discharge current and wide temperature adaptability (-20℃~80℃) provide instant power for takeoff, high-speed flight and maneuvering, meeting the high-power demands of drone flight, similar to the high-performance battery requirements for industrial-grade dronesuperscript:4.

• Electric Tools: Widely favored by electric tool users, its 35A high discharge and stable performance support high-intensity operations of drills, grinders, and other handheld tools, catering to the trend of cordless electric tool popularization.superscript:2

• Custom Battery Packs: Standard 21700 size and lightweight design make it easy to assemble into custom packs for various high-power devices, reducing battery pack complexity and production costs.

• Why Source EVE 21700 40P From Joyvolte Energy?

• Authorized EVE Supply: Genuine 21700 40P cells from EVE, with full access to official specifications and documentation, ensuring product authenticity and quality.

• Strict Quality Control: Pre-shipment testing for voltage, internal resistance, ensuring zero defective products and consistent performance, meeting the high standards of electric tools and drones.

• Focus on High-Discharge Needs: Optimized for high-discharge scenarios, perfectly matching the demands of electric tools, drones, and intelligent robots—we understand the core needs of your products.

• Flexible MOQ & Bulk Pricing: Competitive pricing for large-scale orders, with flexible minimum order quantities to fit manufacturers, assemblers, and distributors in the electric tool and drone industries.

• 24/7 Technical Support: Prompt quotes, stock updates, and technical consultation for battery pack design and integration, helping you leverage EVE’s high-performance cell technology for your products.

• Looking for a high-discharge 21700 battery for your electric tools, drones, or intelligent robots?

  Contact us today for custom quotes, bulk pricing, and stock availability—we respond to all inquiries within 24 hours!