The forklift truck has been around for a century, but today it is found in every warehouse operation around the world. There are seven classes of forklifts, and each forklift operator must be certified to use each class of truck that they'll operate. Classification depends on factors such as applications, power options, and features of the forklift. https://www.forkliftbatterymanufacturer.com/classes-of-forklift-trucks/