Here at Shanghai Green Tech Co.,Ltd., the warranty service may be extended through extended warranty plans purchased from the retailers or us. Based on the practical value and promising prospects of the product, it may cost a lot to repair them or buy a new one, so most customers may have the requirements about extending the product warranty, thereby, relieving their worries about the expensive fee for repairing or replacing. Please note the offering of advanced replacement or repairing service may vary by country. Please check with us first for further information.
As a fast-moving enterprise in China, Shanghai Green Tech has gained a wealth of R&D and manufacturing experience of graphene supercapacitor for sale. The graphene battery series has become a hot product of Shanghai Green Tech. The separation and purification process of GTCAP supercapacitor will be conducted for several times. It is separated from the complicated mineral aggregates and refined at least two times for high purity. Shanghai Green Tech has won high attention and praise from its customers.
For years, we have worked hard to develop a deep understanding of sustainability. We constantly reduce operational waste and manage material costs fluctuations.