Pummel

Pummels, as soldiers have dubbed them, are large tank-like vehicles. While useless from fighting from afar, their true purpose lies in close range, where powerful electric panels shoot out electricity at as much 1,000,000 volts. This technique is very useful against buildings, walls, and stationary turrets, as heavy armor prevents them from taking heavy damage as they approach. The electricity quickly wears down the building, allowing soldiers and smaller vehicles to strom the area.

Source: Star Wars: Galactic Battlegrounds