>>29853597You'd need a source of energy. The practical implication of this is, that you can have, for example, the circuitry of a golem working as a battery, and this battery can be recharged by expending an equal (ideal battery, probably implausible) or higher amount of energy in the process.
So, you can re-use exhausted circuits by recharging them using a special recharging circuitry, but this would consume more magical energy than you can charge into the circuitry as the act of pushing magical energy into the circuitry itself consumes energy.
Essentially, your golems run on a battery. You can recharge your golems at golem recharging circuits, where chuubanite or some other source of magical energy is being consumed and the energy that results from this is pumped into the golem. Essentially, you are moving magic quanta from location A (chuubanite) to location B (the golem's circuitry), expending a small amount of energy in the process (but making your golem's lifespans essentially indefinite, as long as there is magic that can be used to recharge the golem).
This is how I'd see it.