VoltCrave Energy Storage
Consumer Battery INR21700/40P 4000mAh 3.6V Li-ion Cell
Energy Storage Product
VoltCrave Product Detail

Consumer Battery INR21700/40P 4000mAh 3.6V Li-ion Cell

Advanced energy storage product engineered for reliable power applications, scalable supply, and global B2B project requirements.

Model:
Consumer Battery INR21700/40P 4000mAh 3.6V
Brand:
VoltCrave

Cordless Workshop Tools

Designed for integration into battery packs for cordless drills, drivers and other workshop tools. The compact 21700 format supports organized pack layouts for woodworking, assembly and repair applications.

Construction & Maintenance Tools

Supports custom power-tool packs for installation teams and maintenance crews. Cell selection and pack protection should be validated against motor starting current, sustained workloads and operating temperature.

Aerial Photography Drones

A cell option for engineered drone battery packs used in aerial photography and video production. Aircraft integration requires verified power delivery, weight balance and compatibility with onboard battery electronics.

Survey & Inspection Drones

Can be evaluated for battery packs powering surveying and inspection drones. Pack design must account for payload, mission duration, peak current and the aircraft’s monitoring requirements.

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About VoltCrave

Engineering the Future of Advanced Energy Storage

Founded in 2011 in Dongguan, Guangdong, VoltCrave Technology Energy is a green energy enterprise specializing in R&D, manufacturing and integrated energy storage solutions for residential, commercial and industrial applications worldwide.

Our Mission

Empower every home, business and journey with clean, safe and reliable energy.

Our Vision

Become a global leader in energy storage innovation and sustainability.

Our Values

Customer Success, Integrity, Passion, Teamwork and continuous self-critique.

Our Advantage

Strong production capacity, R&D depth, global certifications and scalable supply chain.

Manufacturing Strength

Integrated R&D, Manufacturing and Global Delivery

VoltCrave provides a complete product portfolio covering battery cells, assembled batteries, portable power stations, solar energy systems, all-in-one inverters, residential energy storage and commercial BESS solutions.

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Automatic Production Lines

500K

Units Monthly Capacity

300+

R&D Team Members

800+

Patents Including 420 Inventions

CE UL FCC 680+ Certifications Greatpower · Sunwoda Affiliated
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Strategic Production Bases

Dongguan · Huizhou · Zhejiang manufacturing network across the Greater Bay Area and Yangtze River Delta.

Global Certification Support

Certified for Safe, Reliable Global Energy Applications

VoltCrave supports overseas buyers with major certification documents for product compliance, lithium battery transportation, quality management, and electrical safety verification.

Certification Documents

Five Key Certificates

Global Buyer Support
Restriction of Hazardous Substances certificate
RoHS

Restriction of Hazardous Substances

Supports hazardous substance restriction and environmental compliance.

ISO 9001 certificate
ISO

ISO 9001 Certificate

Supports quality management and production process control.

Electrical appliance material safety certificate
Safety

Electrical Appliance Material Safety

Supports electrical material safety and product reliability review.

Lithium battery transportation safety certificate
Battery

Lithium Battery Transportation Safety

Supports lithium battery export logistics and shipment safety.

UL2743 certificate
UL2743

UL2743

Supports portable power station safety and compliance review.

Certification support for overseas buyers

VoltCrave provides RoHS, ISO 9001, electrical product safety, lithium battery transportation safety, and UL2743 documentation support for overseas procurement and project review.

Request Certification Documents →