The World's Leading Manufacturer of Custom Lithium Ion Battery Packs. CTECHi is a Chinese high-tech enterprise which is dedicated to the R&D, manufacture and sales of rechargeable lithium ion battery packs. CTECHi was founded in 2005, and has an established factory in Shenzhen, Guangdong, China. Since its establishment, CTECHi is committed to serve global demand for efficient, safe, cost effective energy storage solutions for various applications like E-Mobility battery packs, portable power banks, energy storage battery packs, power battery packs, backup battery packs, special usage battery packs, smart product batteries. Due to our core focus on supplying of quality products, CTECHi has become a world leading supplier of lithium ion battery packs. We have partnership with some of the world's leading battery cell manufacturers like Panasonic, LG, Sony, Maxell, Samsung and many others. Contact us for all your energy storage solutions.