,founded in Shenzhen ,Guangdong ,China , we are a high-tech enterprise cooperating closely with many Universities and research institutes , and we are a specialized enterprise engaging in the reaseach ,production and sale of environmentally friendly Li-ion battery ,Lifepo4 battery , Li-polymer battery ,and Ni-mh battery .at the same time ,Cyclen also have developed into a leading manufactuer that provides a wide range of power supplies .