This Tridonic stick style battery contains 3 Nickel-Cadmium (NiCd) cells and features a 4.5Ah capacity. Each cell is 1.2V. This battery is suitable for emergency lighting equipment and is sold with polycarbonate fixing caps and a connecting cable. It has a 4 year design life and a 1 year guarantee from the point of delivery. This product functions at high temperatures and also maintains charge in high temperatures.