Hunan Heyi Energy Technology Co., Ltd.
Innovative. Reliable. Sustainable.
Empowering the Future with Advanced Battery Technologies.
Company Profile
Our greatest strength is our ability to develop fully customized motive power battery systems for a wide range of applications. From battery structure design and cell selection to BMS integration, communication protocols, connectors, charging solutions, and enclosure customization, every battery pack is engineered to match the customer’s specific technical and performance requirements. Our experienced R&D and engineering team works closely with customers throughout the entire development process, delivering reliable solutions for golf carts, low-speed electric vehicles, electric motorcycles, marine systems, forklifts, aerial work platforms, construction equipment, agricultural machinery, robots, and other specialized electric equipment.
Our manufacturing facility covers over 10,000 m² and is equipped with automated production lines, laser welding systems, precision testing equipment, battery aging systems, and complete pack assembly lines. Supported by skilled engineers, experienced production teams, and a rigorous quality management system, every battery undergoes comprehensive inspection and testing before delivery. By combining advanced manufacturing capabilities with flexible engineering support, we ensure consistent quality, dependable performance, efficient production, and on-time delivery for customers around the world.
Some Cool Facts
Numbers Speak For Themselves
HY ENERGY is committed to becoming your trusted global lithium battery manufacturing partner by combining innovation, manufacturing excellence, and customer-focused service.
Engineering & OEM Excellence
Innovation is the driving force behind HY ENERGY’s long-term growth. Our multidisciplinary engineering team specializes in electrochemistry, battery system architecture, mechanical design, embedded electronics, thermal management, and intelligent Battery Management Systems (BMS).
We provide complete OEM and ODM development services, supporting customers from initial concept to mass production.
Our Engineering Capabilities
- Custom battery pack design for voltage, capacity, dimensions, and structural requirements
- 3D mechanical design and rapid prototype development
- Proprietary Smart BMS development and software customization
- CAN Bus, RS485, Bluetooth, UART and customized communication protocol integration
- Thermal simulation and battery cooling system optimization
- Electrical schematic design and system integration
- IP-rated waterproof enclosure development
- Sample prototyping and validation
- Reliability verification and lifecycle testing
Complete OEM / ODM Services
We support customers with:
- Private label manufacturing
- Product appearance customization
- Logo printing and customized packaging
- User manuals and technical documentation
- Certification assistance (CE, UN38.3, MSDS, IEC and more)
- Mass production and supply chain management
Whether developing batteries for energy storage systems, marine applications, electric mobility, telecom backup, or industrial equipment, our engineering team works closely with every customer to deliver highly reliable and market-ready battery solutions with shorter development cycles and competitive manufacturing costs.
Advanced Manufacturing
Our production facility is equipped with:
- Fully automated and semi-automated battery assembly lines
- Laser welding systems
- Automatic cell sorting and grading equipment
- Intelligent BMS programming and testing platforms
- High-voltage insulation testing equipment
- Multi-channel charge/discharge aging systems
- Complete battery performance testing benches
- MES production management system for full traceability
Every battery pack undergoes strict inspections throughout the manufacturing process, including cell matching, module assembly, BMS programming, functional testing, aging, and final quality inspection before shipment.
Strict Quality Assurance
Quality is built into every stage of production.
Our quality management process includes:
- Incoming material inspection
- Cell capacity and resistance matching
- Process quality inspection
- Electrical safety testing
- Charge/discharge performance testing
- High and low temperature verification
- Vibration and transportation simulation
- Waterproof and sealing verification
- Final aging and shipment inspection
We support international certifications including CE, UN38.3, MSDS, IEC and other customer-required compliance standards.
Customer Service
HY ENERGY provides comprehensive support throughout the entire project lifecycle.
Our services include:
- Technical consultation
- Battery selection guidance
- Project evaluation
- Fast quotation response
- Prototype development
- OEM/ODM project management
- Production progress updates
- Global logistics support
- Technical documentation
- After-sales engineering support
Our commitment extends beyond manufacturing—we strive to become a long-term technology partner, delivering reliable products, professional service, and sustainable value to customers worldwide.