Caterpillar has developed four prototypes of battery-powered electric machines. On display at Bauma 2022 in Munich will be a 301.9 mini excavator, a 320 excavator and a 950 GC loader of medium lift capacity, and a 906 compact wheel loader. Machines are powered by Caterpillar prototype batteries and feature a built-in AC charger. Expectedly, that first mass-produced models will be 301.9 and 906.