Many countries have business grants, especially for sustainable or otherwise advanced businesses.
Some of them are low interest loans for developing a startup that might otherwise not find investments.
Others are more like research grants for developing a process or technology, a small sum of money to do research for a limited time and to produce some tangible results.
I had that during my second year of master's. I barely understood it and the rest of the class couldn't understand it at all. I wrote my exam and forgot 99% of it a week later.
Not all batteries are easy to remove nowadays. Also, power management might have gotten better and the battery circuit mostly disconnects when not in use.
I manhandle Manjaro.