A mana battery is a magical device storing magical energy for use at a later time. It work in conjunction with conjured and real substances and is commonly used to power magical devices or objects in cases where a magic user is not available. Another use is for contraptions requiring a large amount of mana to work, such as stone golems. For those the battery is charged with a low feed for a time that allows the operation of the device/spell for short periods of time. [1]


  1. Chapter 21: Mad Science for Beginners