Changshu Wanlong Power Technology R&D Co., Ltd. is a manufacturer specializing in the production of valve-controlled sealed maintenance-free gel batteries. It is located in the Southeast Economic Development Zone of Changshu, Suzhou City, Jiangsu Province, China, close to Shanghai. The main products are "Jingli Rishang" brand Various specifications and models of valve-regulated sealed maintenance-free gel batteries, including 12v series, 2v series, 24v series and other batteries. Products are widely used in solar wind energy off-grid power stations, household energy storage power generation systems, solar off-grid systems, uninterrupted UPS power supplies, communication base stations, and emergency EPS systems, solar street lights, monitoring systems, etc. The company has advanced manufacturing equipment, excellent detection technology, especially the manufacturing technology of nano silica gel electrolyte.