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About Coolzer Manufacturer
With over 20 years of experience as a large-scale manufacturer of hardware computer cases and computer power supplies, we have expanded our expertise to include independently developed portable power solutions and production over the past 4 years.

From design to production, we specialize in manufacturing outdoor power solutions, providing comprehensive services including design, software development, mold development, testing, production, and coating services. While we do not manufacture battery cells, the complete product solution, design, and production are all independently completed in our factory.

Established as the COOLZER brand(also registered "Enginfin" brand in 2020) , our factory specializes in portable power station products. Our commitment to quality craftsmanship, superior technology integration, and a customer-centric approach ensures that our products deliver unrivaled performance, durability, and convenience in powering various devices anytime, anywhere.

View Gallery

There may be no better way to communicate what we do than through images. As you browse our site, take a few moments to let your eyes linger here, and see if you can get a feel for our signature touch.

portable power station in china


Safety Design

 Intentional and careful consideration of safety features and measures during the design and production of a product. Our professional engineer prioritize user safety and provide peace of mind when using the product. 


Coolzer factory accepts custom orders. You can increase margins and save time and money by outsourcing the power station design, production, and extend your product line. 



Being a quality-oriented company,Coolzer ensures that all of our products are perfect on counts of quality. Remember, we are a reliable consumer eletronics supplier with 20+ years of experience.

 If you want to wholesale portable power station in bulk from the Coolzer manufacturer, then we will provide the most competitive factory direct price that will promote your business.

If you’d like more information about our features, get in touch today.

Main Product Category

Welcome to collaborate on ODM projects with Coolzer Factory! Our experienced team can turn your ideas into high-quality products with custom branding, packaging, and timely delivery.


Once you are comfortable with the pre-production samples,  the final products will be produced based on the actual order requirements.


The product sample will be produced based on your personalized design and sent to your company for approval.


Multiple ways you can choose to ship power station products, by sea freight, air freight, post, or courier express.Check with us before details.


Our Coolzer Factory

portable power station factory in China


Visit Our Factory

Have Questions?

Dear Friends, If you want to know more about our factory and products,  Keep in touch with us. 

We’re on GMT +8 and all emails will be handled within 12 hours, or give us a call at +86-0757-82709109

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