What is a battery cycle?
Battery cycle: A cycle of a battery is a discharge plus a charge. For example, if your battery is full charged and you apply load (use) the battery and it discharges some (maybe completely) and then recharge to full battery charge; that is one cycle. Cycle life is the total number of cycles a battery yields. The cycle life is very important in battery applications such as laptop batteries and emergency light batteries. A Ni-cad battery has a cycle life of 500-1000 or more cycles.