A good old farmers' fix for 6v trucks that had too small gauge battery cables and/or corroded battery connections.
I'm sure this was the target market at the time. In my case I never had a problem with starting, I liked the idea of brighter headlights, tail lights ect. along with a hotter spark, and the faster crank speed was a plus. The clincher was adjusting the voltage regulator so everything else was totally seamless.
Memories, ****** Probably 40 years ago we had a grain truck, 6 volt, and the local fuel/ tire/ battery/ snowmobile/ oil/ cigarette/ oleo/ (anybody remember oleo?) distributor sold us an 8 volt battery that had a post at 6 volts and a solenoid that connected the other cell when you hit the key to start, supplying 8 volts for starting only. I have no idea how it charged back up.
Sorry this is looking like a hijack, my bad, I hope Sulli has found a good farm store for that 6 volter.
