From Tridonic this stick type battery contains 2 NiCd (Nickel-Cadmium) cells and has a 4.5Ah capacity. Each cell has a battery voltage of 1.2V. This product features constant high-temperature operation good charging properties at a high temperature and has high energy maintenance. Made by a quality-certified manufacturer this product has a 4 year design life and a 1 year guarantee from the delivery date.