Profile: Celltech Battery Sales & Service Ltd. deals with the task of supplying, installing and maintaining battery systems. We also distribute battery systems. Some of our products include nickel cadmium cells, motor cycle batteries, nickel metal hydride cells and chargers. Our NP batteries are constructed and sealed in such a way that no electrolyte leakage occurs. This battery system utilizes an electrolyte suspension system consisting of a glass fiber separator material. NP batteries are equipped with a safe, low pressure venting system, which is designed to release excess gas, and re-seal automatically in the event of the internal gas pressure rising to an unacceptable level.