handong Tianhan New Energy Technology Co. , Ltd. was established in 2019, more than 300 employees, is a professional engaged in lithium-ion battery, power batteries and battery packs, BMS Battery Management System R & D, design, manufacturing, sales and service in one of the high-tech enterprises. Products are widely used in intelligent manufacturing, new energy vehicle batteries, automotive start-up power supply, communications base station backup power supply, electric bicycles, solar energy storage and home energy storage battery system solutions.