This part of ISO 7176 specifies a method for determining the theoretical distance range of electrically powered wheelchairs and scooters by measuring energy consumed over a specified distance. It is applicable to electrically powered wheelchairs and scooters with a maximum speed not greater than 15 km/h, intended to provide indoor and/or outdoor mobility for one disabled person whose mass is within the range represented by ISO 7176-11. This document also includes requirements for test reports and information disclosure.