The latest circuit has efficiencies unheard of, see the latest post at my STEEMIT blog here:

https://steemit.com/offgrid/@lightin...he-steemit-way

A diode added to the source battery to shield it from the CAP "return" enables the CAP to accumulate more atmospheric voltage. It greatly prolonged the CAP's dump time going into the charge battery and the circuit.

Scrutinize this my friends, I urge everyone willing.

Mario

__________________