Many have problems reading schematics so I am putting up these drawing on some easy VV Box mods.
First a basic VV Box
A VVPT with meter
A VVPT with batteries and meter
Simple meter wiring to read both batteries and atty voltage
This set up will give 4 readings:
Battery voltage
Battery voltage under load
Atty voltage
Atty voltage under load
First a basic VV Box

A VVPT with meter



A VVPT with batteries and meter



Simple meter wiring to read both batteries and atty voltage

This set up will give 4 readings:
Battery voltage
Battery voltage under load
Atty voltage
Atty voltage under load
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