The way in which the Z Cell functions is by making use of the Zueton particles' natural abilities. By subjecting the battery, and in turn, the particles themselves, to some form of energy, the particles will absorb it and discharge electricity in return. This electric voltage is then conducted throughout the Z Cell, and applied to whatever device or tool makes use of it. Most commonly, heat is used as a cheap, reliable form of charging the battery, albeit other forms of energy are just as useful. And unlike our world's batteries, which are discarded upon being used up, the Z Cells can be recharged; meaning Timber doesn't need to constantly craft new Z Cells to replace older ones, making Z Cells extremely resourceful.