system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Do lightsaber need to have their batteries recharged and were they ever used for other than fighting? Could a Jedi use one to warm the water of a bath before getting in it or to stir a big pot of soup while cooking it at the same time?

If a Jedi lives in a house in the forest could he build himself a rack to store his lightsaber while it remains ignited in order to use it as a lamp?

Would the power source last indefinitely or would he need to charge it at some point?
gpt
Lightsabers recycle energy used in the blade, so they're very energy efficient. It's essentially a fixed, looping stream of blaster bolt energy fired through a force sensitive crystal to make it more efficient and powerful. The energy tends to last forever, because Jedi don't use their lightsabers much, and energy cells hold tons of energy. However, if you left it on for a week straight, it might start to run low. Jedi would typically replace the energy every once in a while, when they felt like the power could get low.