| Wesrolter |
Well, there is no cost or anything generally placed on it. I think its generally overlooked. If you are after a make shift house rule, look and an SRO.
SROs (short for “sentient robotic organisms”) are among the most advanced forms of robots, with internal circuits and positronic brains so complex that they, like androids, attract a soul and develop true artificial intelligence and free will. SROs are most common on Aballon, though they are different from the native anacites. Unlike androids, SROs do not have a unified appearance, and many are at best vaguely humanoid in shape, while others have shapes designed purely to assist in their primary functions.
SROs can eat and drink, though they don’t need to, and they must recharge their internal batteries by entering an off-line mode that is similar to sleep for 8 hours every day.
So if you wanted to give the Drone some need to recharge over the X days then maybe treat it like it needs the SRO's Off line mode.
Its pretty much a copy/paste from the other but I didn't know which you would focus on best, though I do like the idea of a Drone plugging into a tree, a sap powered drone.