Resources and support for every stage
Our manufacturing and R&D infrastructure supports the full lifecycle of energy storage products, from cell to system-level integration and testing.
Residential Solution
For household backup, solar self-consumption and daily home energy management.
Pre-sales Support
Technical consultation, solution matching and product selection guidance before purchase. Define the right system for your project.
After-sales Support
Service requests, fault reports, maintenance schedules and warranty information for installed CESC systems.
Frequently asked questions
Common questions about product documentation, consultation process and after-sales service coverage.
What documents are available in the Download Center?
The Download Center includes product datasheets, installation and operation manuals, CE and UL certification documents, BMS firmware packages and EMS platform user guides. All documents are organized by product series and can be filtered by document type.
How do I get a pre-sales technical consultation?
Submit the pre-sales inquiry form with your project type, application scenario and estimated capacity. Our engineering team reviews your requirements and responds within 2 business days with system sizing, product selection and a preliminary proposal.
What is covered under the CESC product warranty?
CESC battery systems carry a standard warranty of up to 10 years from commissioning (varies by series and contract). Capacity is guaranteed above the specified threshold (typically 80%) during the warranty period. Coverage includes manufacturing defects, component failures under normal use and firmware-related faults. Refer to your purchase contract for series-specific terms.
How do I submit an after-sales service request?
Open After-sales Support and complete the service request form with your product series, serial number, issue type and a description. You’ll receive an initial diagnosis within 24 hours, followed by remote troubleshooting, a firmware update, parts replacement or on-site service as needed.
How long does it take to receive a response after submitting a fault report?
We provide a 24-hour response guarantee. Around 70% of issues are resolved remotely via our EMS platform; on-site service is dispatched through our certified service partner network where required.
Can't find what you need?
Our support team is available to help with product questions, technical issues and service coordination. Reach out directly and we will respond within 24 hours.