As of the end of October 2025, China’s electric vehicle charging infrastructure has surpassed 18.645 million units. As the industry enters a phase characterized by both inventory operations and large-scale incremental growth, after-sales service for charging stations has evolved from a “supporting function” into a core capability essential for ensuring operational stability, enhancing single-station profitability, and improving user experience.
In an operational environment defined by high concurrency, cross-regional deployment, and scenario-intensive requirements, charging operators commonly face three major pain points:
- Delayed responses leading to escalated downtime losses
- Uneven regional service capabilities
- High costs and long cycles for core component repairs
Based on a systematic understanding of these industry challenges, Yingtong Zhilian has developed a nationwide, standardized, and quantifiable “Ten-Star” after-sales service system, delivering professional lifecycle support for charging stations.
- Comprehensive Response Network
Leveraging the nationwide service capabilities of Yingfeng Environment, Yingtong Zhilian has established a response system covering 30+ provinces and autonomous regions, 400+ service outlets, and nearly 1,000 service centers:
400-800-0967 National Call Center: Available 24/7 to receive inquiries, complaints, and warranty requests, providing immediate responses and remote technical support
30-minute remote diagnosis completion, 24-hour on-site arrival for routine faults, 48-hour closed-loop resolution for major faults
For critical scenarios, a “on-call immediate response” emergency repair mechanism is activated
Localized Engineering Teams ensure shorter response radii, faster fault resolution, and reduced downtime losses.
- Standardized Service Processes
Yingtong Zhilian has developed a comprehensive standardized system spanning the entire after-sales workflow: from repair request intake to follow-up closure, achieving process transparency, visible milestones, and traceable accountability. This not only enhances service consistency but also provides operators with stable, professional, and predictable service experiences. The standard process includes:
- Repair Request Intake:Expert system efficiently identifies fault severity levels
- Professional Pre-Diagnosis:Technical personnel remotely analyze equipment status
- Work Order Dispatch:Intelligent matching with nearest available engineers
- On-Site Resolution:On-site fault troubleshooting and repair
- Quality Verification:Expert validation synchronized with backend monitoring
- Follow-Up Closure:Work order archiving and continuous optimization
- Professional Core Component Repair Capabilities
In contrast to “complete replacement,” Yingtong Zhilian emphasizes “professional-grade restoration” of high-value core components. The company has established two specialized repair centers—a Module Repair Center and a Charging Gun Repair Center—equipped with in-depth repair capabilities for critical components including main control boards, power modules, drive boards, charging guns, and cables.
Equipped with a complete set of professional testing equipment, including: withstand voltage testers, digital bridges, programmable bidirectional power supplies, 30kW/50kW regenerative loads, and more—meeting stringent repair process requirements.
All repair processes follow the “Repair Process Execution System,” achieving dual-track traceability of “information flow + physical flow.”
- Professional Engineer Team Development
Yingtong Zhilian has built a stable, professional service team capable of independently handling complex on-site issues through its “Engineer Boot Camp.”
The training system covers component recognition, program flashing, fault diagnosis, and other processes. Through theoretical examinations, work order simulations, real-case reviews, and field practical assessments, the company ensures that every engineer possesses comprehensive capabilities to “independently undertake regional maintenance responsibilities.”
- Full Lifecycle Service System
With “equipment full lifecycle management” as its goal, Yingtong Zhilian provides customers with comprehensive services spanning installation and commissioning, operation and maintenance, emergency fault repair, to end-of-life assessment and upgrade planning. Through:
- PDCA Management Mechanism
- Fault Root Cause Analysis System
- Data-Visualized Quality Dashboard
- Full-Process Case Library Management
The company continuously improves service efficiency and operational scientific rigor.
This system has passed authoritative certification under national standards GB/T27922-2011 “Evaluation System for Commodity After-Sales Service” and SB/T10962-2013, earning the “Ten-Star After-Sales Service” accreditation.
With Ten-Star Standards, Safeguarding Every Kilowatt of Energy Flow
Charging infrastructure has become a critical node connecting users, vehicles, and the power grid. After-sales service is not merely about keeping equipment operational—it is a vital link in ensuring the closed-loop business model for operators.
Yingtong Zhilian will continue to uphold “Ten-Star Standards” as its benchmark, providing stable, reliable, and sustainable operational assurance for operators nationwide. Ensuring that every kilowatt arrives more stably and safely.
