For all tools where the relevant part of IEC 62841-2, IEC 62841-3 or IEC 62841-4 requires the tool to be marked with the rated no-load speed, the no-load speed of the spindle at rated voltage shall not exceed 110 % of the rated no-load speed.Compliance is checked by the following test.The tool is operated for 5 min at no-load. Immediately afterwards, the battery is replaced with a fully charged battery. The speed of the spindle is then measured after the tool has been operating for 1 min at no-load.