Our employees are real experts in Lithium-ion battery construction. On many occasions they have helped in creating completely new applications for the above energy sources. Now ETC offers components and measuring devices that will help you build your own battery. We offer single Lithium-ion cells, battery packs, battery management systems (BMS) and other necessary components for battery construction. Whether you need one cell or a complex battery set, you can always count on ETC's expert advice and support.