How about graphene supercapacitor after-sales service?

We provide high-quality graphene supercapacitor together with a wide range of after-sales services, including installation service, return/replacement, maintenance service. For the installation support, in addition to the installation instruction manual, we also provide a demonstration video which you can watch on our website. And to ensure the long-term performance, besides the high quality of products itself, the proper maintenance is essential. If you do not know how to effectively maintain the products, contact us and we can offer professional guidance. And for any quality problem of products, we offer return/replacement service. Do not hesitate to contact us if you need support.

In virtue of years of experience and expertise, Shanghai Green Tech Co.,Ltd. has become a well-known expert in R&D, design, and production of super capacitor module. Various in styles, Shanghai Green Tech's super capacitor module can meet the needs of different customers. The separation and purification process of GTCAP graphene supercapacitor will be conducted for several times. It is separated from the complicated mineral aggregates and refined at least two times for high purity. The integrity, strength and quality products of Shanghai Green Tech is recognized by the industry.

We adhere to the highest standard of behavior and ethics. We will conduct our business by treating our customers and suppliers with fairness, honesty, and respect.