OEM Services – Custom Power Bank Factory China

OEM Power Bank Manufacturing Services

Shenzhen Yousibi Technology Limited

Your Reliable OEM Power Bank Manufacturer Since 2010

Shenzhen Yousibi Technology Limited has been a trusted OEM power bank manufacturer since 2010, specializing in high-quality, customizable mobile power solutions for global B2B clients. With over a decade of experience, we provide full-service OEM and ODM solutions for wholesalers, distributors, brand owners, and corporate gift buyers.

We are committed to delivering reliable, safe, and innovative products backed by internationally recognized certifications, including ISO, BSCI, FCC, CE, UN38.3, and RoHS. These certifications ensure that every product we manufacture meets strict global quality, safety, and environmental standards, making us a dependable custom power bank supplier for worldwide markets.

One-Stop OEM & Custom Power Bank Solutions

As a professional OEM power bank manufacturer, we offer a complete one-stop service from concept to mass production:

Product Customization

• Capacity options: 5,000mAh – 50,000mAh
• Battery types: Li-Polymer & Li-ion
• Fast charging: PD, QC, wireless charging
• Multi-port designs (USB-A, USB-C, Lightning)

Design & Branding

• Logo printing (silk print, UV print, laser engraving)
• Custom packaging (gift boxes, retail packaging)
• Unique industrial design and mold development

Functional Customization

• LED display / digital screen
• Built-in cables
• Wireless charging integration
• Solar or rugged outdoor designs

As a leading custom power bank supplier, we help clients turn ideas into competitive products that stand out in the market.

Certified Quality & Compliance for Global Markets

Quality and compliance are critical for B2B buyers. Shenzhen Yousibi Technology Limited operates under strict quality control systems certified by:

ISO Certification – Ensures standardized manufacturing processes
BSCI Certification – Demonstrates ethical and responsible production
FCC & CE Certifications – Compliance with US and EU safety standards
UN38.3 Certification – Safe transportation of lithium batteries
RoHS Compliance – Environmental protection and hazardous substance control.

Every unit undergoes rigorous testing, including:

• Battery performance testing
• Charging/discharging cycle tests
• Safety and aging tests
• Drop and durability tests

This makes us a highly reliable wholesale power bank partner for importers and distributors.

Strong Production Capacity & Stable Supply

With advanced production lines and experienced engineering teams, we ensure:

Our efficient manufacturing system allows us to support large-scale wholesale power bank orders while maintaining consistent quality.

Advanced Testing & Strict Quality Control

As a professional OEM power bank manufacturer, Shenzhen Yousibi Technology Limited places strong emphasis on product testing and quality assurance. We understand that for B2B clients, product reliability is not optional—it is essential.
To ensure consistent performance and safety, every wholesale power bank we produce goes through a comprehensive multi-stage testing process:

Incoming Material Inspection (IQC)

All raw materials, including batteries, PCBA, and casing components, are strictly inspected before production. This guarantees that only qualified components enter the manufacturing process, ensuring consistency for every custom power bank supplier project.

In-Process Quality Control (IPQC)

During production, our QC team monitors:
• Battery assembly accuracy
• PCB soldering quality
• Charging and discharging performance
• Functional stability of each unit
This step ensures that each promotional power bank meets design specifications and performance standards.

100% Finished Product Testing

Every finished power bank undergoes full inspection, including:
• Capacity verification
• Input/output voltage and current testing
• Fast charging protocol testing (PD/QC)
• LED display and function check
As an experienced OEM power bank manufacturer, we ensure no defective units reach our clients.

Aging Test (Burn-in Test)

All products undergo aging tests (typically 4–8 hours or customized), simulating real usage conditions to identify potential defects before shipment. This is especially critical for large wholesale power bank orders.

Safety & Reliability Testing

We conduct strict safety tests, including:
• Overcharge and over-discharge protection tests
• Short circuit protection testing
• Drop and vibration testing
• High/low temperature testing
These procedures ensure that every product delivered by our custom power bank supplier team is safe, durable, and compliant with international standards.

Ensuring Consistency for Bulk Orders

For large-scale promotional power bank and OEM projects, consistency across batches is critical. Our standardized testing procedures and detailed QC reports help clients:

We can also provide:

Ideal for Promotional & Corporate Gift Markets

Our products are widely used in promotional campaigns, corporate gifting, and retail markets. As an experienced promotional power bank manufacturer, we understand branding requirements and cost control.

We support:

Low MOQ for customized orders
Fast sampling for urgent projects
Creative packaging for gift markets
Seasonal and event-based designs

Whether you are sourcing for exhibitions, corporate giveaways, or retail distribution, our promotional power bank solutions help enhance brand visibility and customer engagement.

Why Choose Shenzhen Yousibi Technology Limited?

Choosing the right OEM power bank manufacturer is essential for your business success. Here’s why global clients trust us:

15+ years of industry experience
Full certifications for global compliance
Strong R&D and customization capability
•Competitive factory pricing
Professional export and logistics support
Dedicated sales and after-sales service

As a long-term custom power bank supplier, we focus on building stable partnerships and delivering value-driven solutions.

Work With a Professional Custom Power Bank Supplier

If you are looking for a reliable wholesale power bank partner or a creative promotional power bank solution provider, Shenzhen Yousibi Technology Limited is ready to support your business.

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