sales@coolienergy.com 
+86 136 0007 2798
Cooli – Save Your Time & Cost
Your Valuable Solar System Partner
15+Years Manufacturer Expertise | Grade A Material | OEM/ODM
✓ Certified Quality: TUV, IEC, CE, UL, MSDS,ISO certificate…
✓ Smart BMS : Custom WiFi/Bluetooth + Almost all brands inverter compatibility
✓ Tailored Solutions: Custom HV/HC systems & engineering support
✓ Rapid Delivery: Samples 7-12 days | Bulk orders 20-25 days
Are You Looking for a Competitive Advantage?
Compared with most of other suppliers, we only focus on making good products with competitive barriers, private model customization, and high threshold certification.
Valuable Partner
What Could a Truly Strategic Partnership Achieve for You?
True partnership requires more than just a quote. It demands proven quality (with the certifications to back it up), flexibility for custom models, and a shared commitment to your market success.
Are you an Energy Storage Battery Seller in the local market and want to build your brand?
Are you need
professional C&I storage production?
Are You
A Wholesaler, Agent And Distributor？
why choose us
Choose to Cooperate with us
We provide customized energy storage solutions tailored to your market needs, backed by a strong R&D team and responsive after-sales service.
Coolienergy’s One-stop Service
Save Worry, Save Trouble, Save Cost
Customer Inquiry
You can contact us by email, phone, or through our website to initiate the inquiry process.
Analyze and Discussion
Our experienced business team will respond to the inquiry and provide a quotation based on your specific requirements within 48 hours.
PI Issuance
After the quotation is approved, our business team will issue a Proforma Invoice (PI) for the client to confirm the order.
Production and Quality Control
We will take the initiative to give feedback on the production progress and inspection status of products in all important production links.
Package and Delivery
After the client approves the equipment, they will make the final payment, and we will arrange delivery.
Service and Review
We have professional after-sales technicians and customer service staff to respond to customer needs in a timely manner.
Real-Life Customer Case
Six indoor high-voltage battery clusters: 384V, 314Ah
We would like to thank Bill for flying from China to Vietnam to assist us in installing six clusters of indoor high-voltage batteries (384V 314Ah). The installation process was very fast, the test results were perfect, and it was an excellent experience.The rack-mountable, modular design is its strongest asset. Being able to stack the units flexibly made installation incredibly straightforward and significantly reduced our overall system integration costs compared to more rigid alternatives.
Powerful & Reliable Industrial Energy Storage Solution
This 384V 280Ah 107kWh high-voltage battery cabinet has been a game-changer for our critical systems. Industrial-grade construction ensures bulletproof reliability with zero downtime. Modular design simplified integration. The 384V architecture significantly boosts efficiency and safety while reducing current demands. Offers outstanding value – premium performance and scalability at a highly competitive investment. Essential for industrial energy resilience.
51.2V 314h Space-Saving Powerhouse!
This wall-mounted 51.2V 314Ah battery transformed our energy setup! Massive capacity in a compact design freed up critical floor space. Installation was straightforward (true plug-and-play), and it delivers rock-solid reliability for daily solar cycling. Efficiency exceeds expectations, and the price-to-performance ratio is unbeatable. Perfect for homes/shops needing serious off-grid or backup power.
News
Coolienergy is a trusted Energy Storage wholesaler and manufacturer
Coolienergy is an offering a full range of lithium battery systems for residential, commercial, and industrial applications. With over 15 years of experience, we supply high-quality, cost-effective energy storage solutions at wholesale prices to global partners. Whether you need wall-mounted batteries, container ESS, or complete solar systems, Coolienergy delivers reliable products backed by expert support and fast shipping.
Let’s Connect Today To Find The Right Solution!
Contact us
How can your energy storage solutions be both competitive and reliable?
Wholesale Prices, Factory-Direct Solutions, Global Shipping,15 Years of Excellence in Battery Manufacturing
If you do not find the answer to your question, you are welcome to contact us at any time, our 24×7 online professional customer service team is ready to serve you
E-mail：sales@coolienergy.com
