A list of potential electric mining vehicle/machinery manufacturers:
The Global Giants, Just a few examples:
Hitachi - Trucks, & large Excavators
Komatsu - Loaders, Dozers, Graders, Trucks, Diggers, Face Shovels, Forklifts
Caterpillar - Just about every mining machine available
O&K - Excavators & Shovels
Le Tourneau - Wheeled Loaders
P&H Electric Draglines & And Electric Shovels - These will be massive - No need for trailing cables or their infrastructure & plenty of room for battery storage, especially draglines if the Motor/Generator sets are taken away. Although, maybe Vanadium. They're basically a building that moves.