To Battery Or Not To Battery (12 Volt)

https://www.youtube.com/watch?v=4sEvxjdLW-o

Jay's Audio Lab interviews Danny from GR Research about Danny's 12 volt battery power setup. I am not going to pay for a $17,000.00 Stromtank, but the discussed battery arrangement looks more doable though I would prefer it in kit form which Danny just might want to do though the liability costs might be prohibitive.