Do graphene powerbanks already exist? We are not the first graphene powerbank nor are we claiming to be, you can find a list of other graphene powerbank brands here. There are companies in China already selling graphene powerbanks online here. Related articles Can you share Flash's battery chemical structure? I can't find evidence that Tesla has graphene in their batteries. Why is this the case? How should I store Flash when it's not being used? Instruction Manual For Flash 2.0 What is my order status?