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Inside Welink’s Smart Factory: Step-by-Step Production of Reliable Shared Power Banks

Shenzhen Welink New Energy, a national high-tech manufacturer with 8 years of deep expertise in shared charging hardware, delivers end-to-end ODM solutions integrating independent R&D, in-house full-chain manufacturing and global after-sales support. Our self-built 20,000 ㎡ multi-story intelligent factory holds over 60 hardware and software patents. We roll out 800,000 charging kiosks and 6 million portable power banks every year, with complete global certifications including CE, UN38.3, SAA and RoHS. Our versatile A07/A08/A09 product series is exported to over 30 countries. We support single-unit sample production within just 3 days, catering to convenience stores, restaurants, high-end malls and overseas commercial zones with tailor-made shared charging equipment.

Our factory is scientifically layered following the full production workflow: raw material storage → shell injection molding → circuit board production → lithium battery assembly → finished product assembly → comprehensive aging testing. Every single process is completed in-house without third-party outsourcing. Strict multi-layer quality inspection runs through all stages to guarantee safe, energy-saving and ultra-stable charging devices for global partners.

1st Floor: Mold R&D, Custom Printing & Finished Goods Warehouse

The first floor is where product shapes take shape and orders get packed for worldwide shipment, equipped with complete injection molding and personalized printing lines. Our professional mold team independently develops molds for all models: compact A07 mini kiosks for small shops, interactive A08 touchscreen stations and large-format A09 advertising cabinets. Custom logos, exclusive brand colors and IP co-branded appearances are all available on demand.
All equipment shells are one-piece molded with V0 flame-retardant PC/ABS eco-plastic, requiring no extra paint treatment. Advanced silk-screen and full-color printing technology creates crisp, wear-resistant brand graphics that stay intact after years of heavy use. All qualified finished goods are stored separately, with full sets of international certification documents attached to each batch, easily meeting entry audit standards for malls in Hong Kong, Australia, Europe and the US.

Standout Features of A07 Series

Mass-produced right here, the 4–16 port A07 kiosks feature a space-saving compact design. Each unit consumes merely 0.26 kWh per day, cutting annual power consumption by 35% compared with competing products — an ideal pick for limited counter space in tea shops and street convenience stores.

2nd Floor: Raw Material Storage & Strict Incoming Inspection

All core supplies, including genuine ATL lithium cells, circuit chips and metal structural parts, are stored in moisture-proof, fire-resistant partitioned zones on the second floor. Every raw material undergoes 100% thorough inspection before entering production lines. We reject all substandard components to eliminate potential safety hazards at the very first stage of manufacturing.

3rd Floor: Bulk Raw Material Reserve Warehouse

This floor stocks massive volumes of standard raw materials to sustain our million-unit monthly output. It efficiently supports both small-batch sample orders and large overseas bulk shipments, shortening lead times drastically: samples ready in 3 days, mass orders delivered within 25–45 working days.

4th & 6th Floors: Modular Assembly Lines for All Models

Two dedicated assembly lines separate standard charging stations and advertising touchscreen cabinets. Our skilled technicians install battery packs, display screens and card readers following standardized workflows. Our proprietary bilingual VS CHARGE backend system is pre-installed during assembly.
The system natively supports Octopus, AlipayHK, Visa, NFC and other global payment channels with zero platform commissions. It features automatic multi-tier profit sharing, AI fault alerts and global map location tracking. A unique SN trace code is printed on every unit for quick global after-sales troubleshooting.

Core Advantages of A08 & A09 Series

The A08 lineup comes with 3.5-inch and 10.1-inch HD touch panels with card payment function, perfectly suited for hotels, cinemas and cultural shopping districts.
Premium A09 kiosks are fitted with 10.1–43-inch ultra-large advertising screens, bringing merchants an extra 25%–30% advertising revenue. They are top choices for landmark shopping hubs like Harbour City and K11.

5th Floor: Class 100,000 Dust-Free SMT Circuit Workshop

Circuit boards determine charging speed and long-term operational stability, so we build a fully enclosed dust-free workshop exclusively for motherboard manufacturing. All staff wear full dust-proof protective gear during operation. Automated mounting and AOI optical inspection machines eliminate cold solder joints and short circuits. Mainboards are built with multi-protection circuits against overcharging, overheating and short-circuiting, keeping hardware failure rate below 1.5% — far lower than the industry average of 3%.
All our devices deliver 22.5W ultra-fast charging, refilling 80% of a phone’s battery in just 30 minutes. Equipped with durable ATL lithium cells, they perform steadily under high-temperature climates such as Australia and the Middle East.

Mandatory 7-Step Aging Test on 6th Floor Lab

No products can be shipped without passing all seven rigorous tests in our dedicated laboratory:

1.Full function test for charging, payment and touch screen response
2.72-hour continuous standby power consumption monitoring
3.55℃ high-temperature aging test simulating tropical hot environments
4.2,000-time plug-and-pull durability test
5.V0 flame retardant safety assessment
6.72-hour uninterrupted cloud network stability test
7.Full verification of international certification paperwork

5 Unmatched Strengths of Our Layered Vertical Manufacturing

1.Fully In-House Production Cuts Extra Costs
No outsourced processing markup, bulk material costs 15%–20% lower than industry average. We welcome small trials with no minimum order requirement, even for a single unit.
2.Multi-Stage Quality Control Minimizes Malfunctions
Defective parts are filtered out at raw material, circuit, battery and finished product stages, slashing offline maintenance costs for operators.
3.Full-Range Product Line Covers All Commercial Scenarios
Compact A07 kiosks, interactive A08 touch models and giant A09 advertising cabinets fit every venue: small shops, mid-sized stores, luxury malls and outdoor locations.
4.All-In-One Hardware & Software Customization
We customize cabinet shapes, port numbers and display sizes, paired with our exclusive commission-free backend to deliver complete one-stop ODM solutions.
5.Global Certifications & Fast Worldwide Logistics
We provide country-specific certification packages. Three overseas warehouses in Singapore, Los Angeles and Hamburg deliver spare parts within 72 hours for cross-border business partners.

Conclusion

Most competitors only assemble outsourced components, while Welink controls the whole industrial chain including mold design, injection molding, SMT circuit production, battery assembly, full assembly and rigorous testing with our multi-story smart factory. Supported by 8 years of industry experience, comprehensive product portfolio and global logistics network, we provide reliable, cost-effective customized charging solutions for Hong Kong & Macau local entrepreneurs, cross-border exporters and domestic chain retailers, helping you seize huge opportunities in the global shared charging market.