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OEM & ODM Custom Lithium Battery Solutions

Shenzhen Huayousheng Energy Technology Co., Ltd

Company Profile

Shenzhen Huayousheng Energy Technology Co., Ltd. is a high-tech enterprise integrating R&D, production and sales of lithium polymer batteries and 18650 cylindrical lithium battery packs. Established in Guanlan, Shenzhen in 2013, we relocated our large-scale production base to Shuikou Subdistrict, Huicheng District, Huizhou in 2016.

We own fully automatic PACK production workshops, professional electrochemical R&D teams and complete safety testing laboratories. With over 10 years of lithium battery customization experience, we deliver one-stop OEM private labeling and ODM full R&D customized battery solutions for global brand owners, wholesale distributors and equipment manufacturers. Up to now, we have cooperated with more than 100 clients across the world. Our customized batteries cover heating clothes, human body sensing lamps, outdoor backup power supplies, teaching voice amplifiers, wireless lavalier microphones, security monitoring cameras and all types of portable electronic equipment.

We customize cell dimensions, rated capacity, voltage, series-parallel layout, BMS protection circuit, wiring terminals, silk screen printing and packaging flexibly according to clients’ equipment installation space, endurance demand, power supply parameters, export certification standards and budget. Small-batch sampling and stable mass production are both available. All finished batteries can be equipped with complete export certifications including CE, UN38.3, RoHS, MSDS and BIS. We sign Non-Disclosure Agreements (NDA) with all cooperative partners to strictly protect your technical drawings, product solutions and intellectual property.

1. OEM Private Label Manufacturing Service

Target Clients

Brands, trading companies and equipment manufacturers with mature battery samples, technical drawings or complete parameter standards, who only need a qualified factory for mass production and private brand printing.

Core Service Items

1. Strictly produce batteries fully in accordance with your drawings, dimensions, voltage, capacity, discharge current, terminal models and BMS technical standards;

2. Custom exterior appearance: Custom color aluminum plastic film, print your brand LOGO, product model and electrical parameters on battery surface;

3. Custom packaging solutions: Blister packs, color gift boxes, neutral white boxes and exclusive customized outer cartons;

4. Two production modes optional: Customer-supplied raw materials or full-material turnkey manufacturing. All cells we adopt are Grade-A cells with excellent consistency;

5. 100% full inspection before shipment: Capacity test, internal resistance test, overcharge/over-discharge protection test, short-circuit safety test and high-low temperature cycle aging test;

6. Flexible minimum order quantity, fast sampling within 3–5 working days for standard battery models, stable and controllable bulk order lead time.

2. ODM One-Stop R&D & Custom Development Service

Target Clients

Start-up brands and equipment manufacturers without internal battery R&D teams, who only put forward application requirements and need complete battery solution development from scratch.

Full Customization Workflow

1. Demand Assessment: Communicate equipment internal installation space, target standby runtime, rated working voltage, continuous discharge current, service environment (low temperature / outdoor) and certification requirements for target export countries;

2. Professional Solution Design: Our engineers select matching lithium cells, design series-parallel PACK structures, customize PCM/BMS protection boards, match JST/Molex wiring harnesses and connectors, and add NTC temperature sensors & fuses for multi-layer safety protection;

3. Structural Optimization: Custom ultra-thin, irregular special-shaped lithium polymer pouch cells to maximize the utilization of internal space of your finished devices;

4. Engineering Sample Production: Deliver test prototypes within 3–7 working days, free performance adjustment and structural optimization after assembly test;

5. Safety & Certification Testing: Complete cycle life, drop, extrusion and acupuncture safety tests; assist clients to apply all required international export certification documents;

6. Mass Batch Production: Automatic assembly lines in Huizhou factory, full production quality traceability system, stable monthly output to support long-term repeat orders;

7. Value-added supporting services: Custom silk printing, neutral unbranded delivery, one-stop cross-border export logistics coordination.

Battery Types Available for Customization

1. Lithium Polymer Pouch Batteries: Full series sizes (654060, 523759 etc.), 3.7V single cell / 7.4V dual-cell battery packs

2. 18650 Cylindrical Lithium Battery Packs: 3.7V / 12.6V / 16.8V power packs for outdoor backup power stations

3. Application-specific customized batteries: Heating vest batteries, sensor lamp storage batteries, wireless microphone batteries, teaching amplifier batteries, CCTV camera standby batteries, built-in power supplies for all portable smart electronics

Core Advantages of Cooperation With Huayousheng Energy

1. Dual-base layout: R&D & sales center in Shenzhen + standardized mass-production factory in Huizhou, direct factory quotation without middlemen, higher cost performance;

2. Professional R&D team: Electrochemical, electronic and structural engineers provide full-cycle technical docking to quickly solve all customization technical problems;

3. Strict full-process QC system: Independent cell sorting workshop, multi-protection circuit design, 12 types of professional safety tests before delivery, effectively avoid battery bulging and short-circuit risks;

4. Complete global export qualification: Complete UN38.3 air & sea transportation appraisal reports, meet customs clearance standards of Europe, America, Southeast Asia, India and other regions;

5. Thoughtful after-sales system: Professional technical guidance for prototype testing, whole-process follow-up during mass production, 48-hour rapid technical response, exclusive account manager for long-term cooperative clients;

6. Strict intellectual property protection: NDA signed for all ODM development projects, all design drawings and battery schemes are kept confidential, identical customized batteries will never be sold to third-party customers.

Standard Cooperation Process for Custom Battery Projects

1. Client submit demands (drawings / physical samples / equipment technical specifications)

2. Huayousheng engineers release professional technical solution & formal quotation sheet

3. Client confirm the solution, arrange sample payment for prototype production

4. Sample performance test & repeated optimization until final confirmation

5. Sign mass production contract, arrange deposit payment to schedule production

6. Full quality inspection after production; full payment before shipment, provide inspection report & complete certification documents

7. Lifelong technical after-sales support for all cooperative clients

R&D Strength | Independent Lithium Battery Research & Development

1. Our R&D Team

Shenzhen Huayousheng Energy boasts a professional full-stack R&D team composed of electrochemical engineers, electronic circuit designers, structural engineers and reliability testing specialists with over 10 years of lithium battery industry experience.

Our technical team focuses on lithium polymer pouch cells, 18650 cylindrical battery packs, BMS protection circuit design and low-temperature high-discharge battery optimization. We keep updating battery formulas and structural solutions to meet the customized power demands of heating apparel, sensing lighting, outdoor portable power, wireless audio equipment and monitoring devices.

2. Complete R&D & Testing Laboratories

We have built a standardized in-house laboratory equipped with full sets of professional testing equipment to conduct all-round performance and safety verification:

• Electrical performance test: capacity, internal resistance, constant current discharge, cycle life test

• Safety abuse test: overcharge, over-discharge, short circuit, extrusion, drop, acupuncture, high & low temperature aging test

• Environmental adaptability test: low-temperature discharge, humidity resistance, vibration test
All new battery prototypes pass 12 strict testing items before mass production to eliminate hidden safety hazards.

3. Independent Custom Solution Development Capability

Our R&D department provides full technical support for all ODM cooperation clients:

1. Analyze your equipment installation space, power consumption, working environment and target certification standards

2. Customize exclusive cell size, voltage, capacity and series-parallel PACK structure

3. Design matched multi-protection BMS circuit, NTC temperature control and safety fuse scheme

4. Optimize ultra-thin, special-shaped battery structure to maximize internal equipment space utilization

5. Iterate and optimize samples repeatedly according to your test feedback until performance meets requirements

4. Technical Innovation & Certifications

We continuously invest in new material and battery technology research, and hold multiple practical patents for lithium battery PACK structure and protection circuits. All our customized batteries can support global export certifications including CE, UN38.3, RoHS, MSDS, BIS, helping clients smoothly complete customs clearance for Europe, Southeast Asia, India and other markets.

5. Fast R&D Lead Time

• Ordinary standard battery sample development: 3–5 working days

• Special-shaped customized battery new mold development: 5–7 working days

• Mass production technical follow-up: dedicated R&D engineer one-on-one docking, 48-hour technical problem response