Vitriolic Battery

A battery powered by refined Vitriol. It acts as a reservoir for Void Magic. They are shaped much like a modern gas can, but of medieval construction. The key component in each battery is a shaped translucent purple gemstone, cut roughly to the shape of the battery. It glows purple with the stored energy.

Manufactured in, and a major export of, Pandemonium. When running, they smell faintly of rotten eggs.