8 volt battery in a 6 volt car?

Sounds like a good plan. Check all connections and be sure to use the correct battery braided battery cables, not the thin 12V cables.
 
old31 said:
I will be taking it out an ordered a 6 v optima. It seems to me I will have less problems, better cranking amps and 15lbs lighter.
Click to expand...

What vehicle are we discussing? My 35 & 36 used a low profile battery originally and fitting modern replacements including my preferred Optima RedTop do require a little fiddling.
 
Run the 8 volt and adj. regulator. Starting is easier, lights a little brighter, and after 10 yrs. have noticed no lifespan issues with bulbs.
 
Jack E/NJ said:
8v tractor batteries usually have more CCAs. Jack E/NJ


449033
Click to expand...

Deka's are the best in the business. So much so, OEM battery for all BMW's.
 
If the battery were to go dead, say you left h to e lights on, would it charge enough on a 6v charger? I know 12 volt chargers put out more than 12, but never checked what happens on 6volts
 
VeryTangled said:
What vehicle are we discussing? My 35 & 36 used a low profile battery originally and fitting modern replacements including my preferred Optima RedTop do require a little fiddling.
Click to expand...

Talking about a 35. Someone altered my battery case long ago, so the optima will work.
 
I have had an 8 volt Interstate battery for the last 2 years. My mechanic adjusted the voltage regulator for the increase. It now starts like a 12 volt, and all the lights are some brighter. It is one of the best things I did for my truck. I also removed the wiper motor and cleaned it and re-oiled. It also runs great; I do have a tomato juice vaccum tank mounted under the dash, so that helps.
Sadly not much driving in 2020 for the obvious reason.
Cheers, Byron. (Yes I am still alive.)
 
Byron, things will get better I hope around 2021 next summer. I'm sure your mechanic can agree.
 
When I lived in Eastern Idaho during the '40's, '50's 8 volt battery's in a 6v vehicles were very common. I put an 8v battery in my '36 in '52, ran it until I moved to Vegas, then switched to 6v after the 8v failed in '55.
I never experienced any issues with the lights, radio or heater. The 8v battery made the '36 much easier starting in sub-zero temps which I did not experience in southern Nevada.
I think that most of the pro-con hype about 8V in a 6v system causing problems is based on theory not actual experience.
 
8 volts never could understand the logic its in the middle of nowhere theres nothing wrong with 6 volts these days since you can now get 6v LEDs it just takes a little more mantance
 
You must log in or register to reply here.
Back
Top