Design a PV that uses grocery store batteries, uses connectors like coaxial power jacks- not the e-cig industry connectors sold by somebody like Mad Vapes, and design an rba from scratch that can connect to the hardware store power jack. In other words, design a PV that you could build if the entire worldwide industry were to vanish.
Bonus: make it a vv device.
Bonus: make it a vv device.