Lithium Battery Energy Storage Systems for Global Solar Partners
From residential wall-mounted batteries to industrial container ESS — RUEN SOLAR delivers factory-controlled quality, system-level engineering, and responsive partnership for distributors, EPCs, and OEM buyers worldwide.
Built for B2B Buyers Who Value Reliability
We understand what professional buyers need: consistent quality, responsive communication, and a partner who delivers on promises. Here's why distributors and EPCs choose RUEN.
Factory QC Control
Every battery undergoes 100% capacity testing with traceable records. What you see in samples is what you get in bulk.
24h Response
Quotation, technical specs, and container loading plans within one business day. Your timeline is our priority.
System Compatibility
BMS protocols matched to your inverter brands. We ensure system-level compatibility before production.
OEM/ODM Ready
Private labeling, custom packaging, and protocol modifications. Build your brand with our manufacturing backbone.
Ready to work with a manufacturer who understands B2B priorities?
Start a ConversationProven Performance Across Continents
From African microgrids to Australian commercial installations, our systems deliver reliable performance in diverse environments and applications.
Residential
Commercial
Utility
See how our solutions perform in environments similar to yours.
View All Case StudiesEnd-to-End Support for Your Business
Beyond products, we provide the services that make your business run smoother — from technical support to logistics optimization.
OEM/ODM Manufacturing
Full customization capabilities from BMS protocols to enclosure design. Build your brand with our engineering and manufacturing backbone.
- Custom BMS firmware
- Private label packaging
- Protocol matching
Technical Engineering
Pre-sales system design and post-sales technical support. Our engineers work with yours to ensure seamless integration.
- System sizing support
- Integration guidance
- Remote troubleshooting
Logistics Optimization
Container loading plans, shipping documentation, and delivery coordination. We handle the complexity so you don't have to.
- Loading optimization
- Export documentation
- Delivery tracking
Let's discuss how we can support your specific business needs.
Talk to Our TeamSolving Real Problems for Real Projects
Every project has unique challenges. Here's how our energy storage solutions address common pain points across different applications.
Home Battery Solutions
Wall-mounted and stackable LV battery systems with plug-and-play installation, compatible with major inverter brands, and backed by 10-year warranty.
C&I Energy Storage
Scalable cabinet and container ESS solutions with advanced EMS compatibility, designed for peak shaving, demand response, and hybrid integration.
Hybrid Solar Systems
Rugged, all-in-one ESS designed for remote locations. Solar-diesel-battery hybrid integration with minimal maintenance requirements.
EV Charging Solutions
Integrated ESS + EV charger solutions that buffer grid demand, reduce infrastructure costs, and enable fast charging without grid upgrades.
Find the right solution for your specific application.
Explore All SolutionsEnergy Storage Systems for Every Application
From compact residential units to utility-scale container solutions — choose factory-direct lithium battery systems with full OEM/ODM customization and global certification support.
Best Seller
Home Battery Systems
Wall-mounted and stackable LiFePO4 batteries with plug-and-play installation, ensuring your customers enjoy reliable backup power and reduced electricity bills.
C&I Cabinet ESS
Scalable rack-mounted systems with advanced BMS and EMS compatibility, helping businesses achieve 40%+ reduction in peak demand charges and operational costs.
Industrial
Container ESS
Pre-integrated containerized solutions with fire suppression and thermal management, delivering turnkey deployment for microgrids and utility-scale projects.
EV Charging + Storage
Integrated ESS and DC fast charger solutions that buffer grid demand, enabling high-power charging without costly infrastructure upgrades.
Looking for custom specifications or private label options?
Download Full CatalogSystem-Level Engineering, Not Just Cell Selling
Our in-house R&D team develops complete energy storage systems with BMS-inverter protocol matching, pre-tested compatibility, and project-level technical documentation — reducing your field issues and installation time.
In-House BMS Development
Custom BMS firmware with CAN/RS485 protocols tailored to your inverter requirements, ensuring seamless communication and zero compatibility issues.
System Integration Testing
Every battery system is pre-tested with major inverter brands before shipment, delivering plug-and-play performance that reduces installation callbacks by 90%.
Complete Documentation
Full technical packages including wiring diagrams, commissioning guides, and multi-language manuals — everything your installers need for confident deployment.
OEM/ODM Engineering
From concept to production in 45 days — custom enclosures, firmware branding, and private label packaging engineered to your exact specifications.
Pre-Tested Compatibility with Leading Inverter Brands
Need technical consultation for system design or inverter matching?
Talk to Our EngineersFactory Control You Can Verify
We invite scrutiny because real manufacturers have nothing to hide. Complete production traceability, verifiable certifications, and open-door factory policy — building the trust that long-term partnerships require.
Full Production Traceability
Every cell, BMS, and component tracked from supplier to final assembly with QR-coded batch records, ensuring consistent quality across all shipments.
100% Quality Inspection
Every unit undergoes aging tests, capacity verification, and safety inspection before shipment — no sampling, no shortcuts, zero compromise on quality control.
Open Factory Policy
Factory audits and visits are always welcome. See our production lines, meet our engineers, and verify capabilities before placing your first order.
Certification Documentation
Complete certification packages with test reports and compliance documentation available on request — ready for your market entry requirements.
International Certifications & Standards
Want to verify our manufacturing capabilities firsthand?
Schedule Factory AuditRUEN SOLAR Energy Group
A lithium energy storage manufacturer combining factory control, system-level engineering, and project flexibility — built for global solar and storage partners who value reliability.
RUEN SOLAR Energy Group Co., Ltd is a China-based manufacturer specializing in lithium battery energy storage systems. With a dedicated team of approximately 100 professionals including 25+ R&D engineers, we serve distributors, EPC contractors, and OEM partners across 30+ countries.
Our mission: "Manufacturing the Future of Solar Power" — delivering not just products, but complete energy storage solutions backed by system-level thinking and genuine partnership commitment.
Factory Control
Direct manufacturing with complete quality oversight
System Thinking
Engineering solutions, not just selling cells
Partner Mindset
Shared responsibility, long-term relationships
Our Global Market Coverage
Ready to explore a manufacturing partnership that thinks like your team?
Start a ConversationSee Where Quality Is Built
Our modern manufacturing facility features automated production lines, dedicated QC laboratories, and in-house R&D center — all under one roof for complete vertical integration and quality control.
Modern Facility
State-of-the-art production equipment with automated assembly lines ensuring precision and consistency in every unit.
100% QC Testing
Every battery undergoes aging tests, capacity verification, and safety inspection — no unit ships without complete validation.
Vertical Integration
From cell selection to final assembly, complete manufacturing process under single-site control for full quality oversight.
Export Logistics
Direct access to major shipping ports with optimized container loading expertise for efficient global delivery.
Want to see our manufacturing capabilities in person?
Schedule Factory VisitFast Response, Clear Responsibility
Time matters in your business. Our streamlined communication ensures you get answers fast — because responsive partnership drives project success.
Same Timezone Support
Dedicated account managers working in your business hours for real-time communication without overnight delays.
Clear Responsibility Chain
Single point of contact with escalation path. When issues arise, we own them — no finger-pointing, no disappearing.
After-Sales Engineering
Remote troubleshooting support and field issue resolution. Our engineers stay with your project beyond delivery.
Experience the difference of responsive partnership.
Get Your Quote in 24 HoursTrusted by Global Energy Partners
Hear directly from distributors, EPC contractors, and system integrators who have built successful businesses with RUEN SOLAR.
"What sets RUEN apart is their system-level thinking. They don't just ship batteries — they ensure compatibility with our inverters before production. Zero field issues in 200+ installations."
David T.
Managing Director, Solar Distributor"Response speed was the deciding factor. When we needed urgent technical clarification for a tender, their engineers replied within hours — not days. That won us the project."
Michael R.
VP Operations, Energy Solutions"We've worked with many Chinese suppliers. RUEN is different — they take responsibility when things go wrong. After 3 years, they're more partner than supplier to us."
James W.
Founder, Off-Grid Power SystemsJoin 500+ partners across 30 countries building with RUEN SOLAR.
Become a PartnerKnowledge Hub for Industry Professionals
Technical guides, market insights, and engineering best practices to help you make informed decisions and grow your energy storage business.
Access our complete library of technical resources and market insights.
Explore All ArticlesFrequently Asked Questions
Click any card to reveal the answer — helping you make informed purchasing decisions
What is your minimum order quantity for ESS products?
Our MOQ varies by product type:
Can you customize BMS protocols, enclosure design, and branding?
Yes, comprehensive OEM/ODM services:
How long does production and delivery take?
Optimized production timelines:
How do you ensure consistent quality for bulk orders?
Rigorous QC process for every unit:
What if there is a quality issue after delivery?
Comprehensive after-sales support:
What shipping methods and terms do you offer?
Flexible shipping solutions:
Have more questions? Our team is ready to help.
Ask Our ExpertsReady to Power Your Business with Reliable Energy Storage?
Whether you're expanding your product line, bidding on new projects, or exploring OEM partnerships — our team is ready to help you succeed in the energy storage market.
Get a Fast Quote for Energy Storage Systems
Reply within 24 Hours
Professional sales team responds to every inquiry quickly with detailed information
OEM & Custom Packaging Support
Full customization for BMS protocols, enclosures, and branded packaging to match your requirements
Stable Quality & After-sales Service
Rigorous quality control and reliable after-sales support for long-term partnership
Send Your Inquiry Now
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