Shenzhen Zhongxi Electronical Co., Ltd. is a Shenzhen Zhongxi Electronical Co., Ltd. Located in Shenzhen city of China, the major business and products focus on the production of batteries with high-energy power, such as the battery of 18650 high-energy with different specifications, which are having a widely application in EV and other electronic devices in our daily life, and some affiliated products served for the batteries, such as the chargers and 18650 cell unlimited expandable battery holders.If you are interested in our above mentioned products, please contact me directly.I will be waiting for your return. Thank you. Shenzhen Zhongxi Electronical Co., Ltd.