[blucar]

A lot of hype over nothing.. I lived in Eastern Idaho for many years until the mid 1950's when I bailed for California.
I used an 8v battery in my 36 for years. The only alterations I had to make to the vehicle was to adjust the voltage regulator up to 8+v in lieu of 6+v. I had converted the generator to a two brush '39 with a regulator in 1952.
Never had a problem with bulbs, heater or original radio. The Harmon-Collins ignition in my car was not effected by the added voltage.
The added power, volts, etc., were a big help in sub zero temps.