Not really directly related to the Tesla question, but I played around with using banks of lead acid batteries to power phono preamps. They were quiet but the life and soul disappeared compared to mains power.
Tesla Battery as a power supply?
I was flipping through the newest issue of TAS and saw a short announcement about a new battery power supply that will cost $29,000. Expensive by any stretch. It occurred to me, I wonder if the new Tesla batteries - though designed to be used as part of a solar regenerative household electrical grid - might offer some of the same benefits i.e. lower noise floor, less power line grunge, etc. Plus they're only supposed to be around $3500 each, a relative bargain compared to hi-fi specific rigs. Any thoughts?