Shanghai Green Tech Co.,Ltd. is well recognized not only because of the great quality large supercapacitor but also due to the excellent after-sale service. Our after-sale service is strongly supported by experienced technicians. The after-sale team offers support when there are problems in use, maintenance, repair, etc.

Since establishment, Shanghai Green Tech has been a leader in the supercapacitor industry. Shanghai Green Tech is mainly engaged in the business of graphene battery and other product series. The product is featured by strong durability and long-lasting performance. This product typically consumes very low amounts of power, which only needs low maintenance costs and less little frequent replacement.

We are committed to limiting the environmental impact of our activities. To ensure a high level of environmental safety and prevent pollution, our operational directives are based on the most stringent global standards.