This standard is Part 1 of IEC 62485 under the generic title "Safety requirements for secondary batteries and battery installations" with nominal voltages up to DC 1 500 V and specifies the basic requirements referred to in the other parts of the standard as follows: Part 2: Stationary batteries Part 3: Traction batteries Part 4: Batteries for use in portable appliances The requirements regarding safety, reliability, life expectancy, mechanical strength, cycle stability, internal resistance, and battery temperature, are determined by various applications, and this, in turn, determines the selection of the battery design and technology.