Services
OUR Services
CHEYAN Technology has always adhered to the service philosophy of putting customers at the center, and is committed to providing global partners with full lifecycle services ranging from pre-sale consultation to post-sale support. We have a professional, efficient and responsive service team covering various fields such as technical support, order management, logistics delivery, and after-sales maintenance.
No matter where you are or what your needs are – whether it’s seeking product selection advice, customized solutions, or encountering usage problems – CHEYAN Technology will provide you with professional and considerate service support immediately.
PRE-SALES SERVICE
In-Sales Service


After-Sales Service
Product Warranty
Provide a 12-month free warranty period. During the warranty period, failures caused by product quality issues are covered by free repair or replacement services.
Failure Response
Respond within 24 hours after customer submits an after-sales request and provide a solution. Common issues can be resolved through remote guidance; complex issues are handled by return/replacement or factory repair.
Repair Services
Repair Service For products beyond the warranty period or damaged due to non-quality issues, provide paid repair services, charging only for parts costs and basic labor fees.
Return & Exchange Policy
Within 7 days after receiving goods, if product quality issues or discrepancies from the order are found, customers may request a return or exchange. Specific terms are subject to the sales contract.
Spare Parts Supply
Long-term supply of product accessories (such as jumper clamps, inflation, hoses, power adapters, etc.), ensuring customers’ equipment can be used stably for a long time.
Customer Follow-Up
Regularly follow up with existing customers to understand product usage, collect improvement suggestions, and continuously optimize products and services.
Technical Support
Transportation & Delivery

Warehousing & Logistics

Delivery Assurance
The company commits to an on-time delivery rate of over 98% for bulk orders. If delay is caused by company reasons, compensation will be provided as stipulated in the contract.
In response to potential abnormalities in production and logistics (such as equipment failure, weather impacts, or schedule changes), we have establishedemergency plans and rapid response mechanisms to minimize the impact on customers.
Regularly collect delivery data, analyze causes of delays, and continuously optimize production scheduling and logistics solutions to enhance delivery capabilities and customer satisfaction.
Service Commitment

CHEYAN Technology understands that excellent products must be accompanied by outstanding service. We commit to:
Fast Response: Reply to customer inquiries and after-sales requests within 24 hours
Professional Support: Dedicated team support throughout the entire process—pre-sale, in-sale,and after-sale
Quality Assurance: 12-month warranty with free repair or replacement for quality issues
On-Time Delivery: Over 98% on-time delivery rate with full transparency of order status
Flexible Services: Supports OEM/ODM, agency, and various other cooperation models
Choosing CHEYAN Technology means not only choosing a reliable emergency power product but also a long-term, worry-free service guarantee.
FAQ
Quick Answers For Your Important Questions
We are a direct factory integrating independent R&D, manufacturing, and global sales. Established in 2023 and headquartered in Zhengzhou, Henan, we have complete production lines and quality control systems. We support OEM/ODM customization and bulk orders. Factory visits are welcome at any time.
OEM/ODM customization typically takes 30–45 working days, depending on complexity. The process includes: requirements discussion → solution confirmation → sample production (approx. 7–10 days) → mass production → QC and shipping. We provide progress updates at every stage.
For distributors with strong market development capability and financial strength, exclusive distribution rights for specific regions or channels may be granted after evaluation.
The number of times the product can be charged depends on environmental factors and the engine displacement of different vehicle models. The data may vary. Here are the laboratory test results: The 8000mAh power bank can be charged 30+ times; the 16000mAh four-in-one model can be charged 80+ times; the truck battery series has a larger capacity and can be charged hundreds of times.
Absolutely safe! Our products have multiple protections against overcharging, overdischarging, short circuiting, reverse connection, overtemperature, and overcurrent. The truck series uses a full metal body, which is fireproof and explosion-proof. The capacitor model uses super capacitor technology, and it will not catch fire or explode even under needle piercing, squeezing, or overcharging.
Yes. We offer comprehensive OEM/ODM customization services, allowing customization of brand logos, packaging, appearance, functions, etc. Please feel free to contact us for cooperation discussions!
Our products cover everything from 12V passenger vehicles to 24V heavy-duty trucks, suitable for a wide range of automotive aftermarket channels. Products are currently exported to more than 50 countries and regions, with established customers in North America, Europe, the Middle East, and Southeast Asia. We welcome inquiries about configuration recommendations for specific markets.










