Administration and engineering that takes fierce pride in their work is the envy of the world. No one except perhaps the British and the Krauts, have such and attitude. Caterpillar decades ago became disgusted with fasteners and batteries so they branded their own.
Japan, India, and Korea all make their own heavy construction equipment. Come to Mexico and ask companies why they insist on Caterpillar and you will hear an earfull.
We can manufacture the best stuff on earth, bar none. Little old me, takes a power supply apart and upgrades some parts and ends up with something damned near blowup proof. The upgraded 55 amp Megawatt laughs at overloading to the point of absurdity. My real thoughts about a good power supply would give it status worthy of intelligence. There is NO WAY I would think about building a hands off SMART CONVERTER because
IT
CAN'T
BE
DONE
without extensive sensors and a central processor, for an off-grid or boondocking battery system. A lazy person is one of the most illogical things on the face of the earth.