That is an old trick that was fairly common back when a 6 volt battery was standard in cars, trucks, and tractors. One of my Hs had a dead 8 volt battery in it when I brought it home. I installed a new 6 volt. No problems.
 
(quoted from post at 17:11:38 01/28/10) any advantages to using an 8v..

The theory is that an 8 volt has more starting power, and in all honesty it does, but a 6 volt system in good condition will perform just as good.
 
At best it is a band aid fix for other problems. When was the last time you saw an 8 volt battery charger?? Then think about how you would keep it charged since a stock charging system would maybe keep it at 7 volts. So to me it is a waste of time etc to use one. Either stick with 6 volts or go to 12 volts and be done with it and save your self a head ache
 
Mike,
I have a 8volt in my H. I use a 8v battery tender on it. This is a restored tractor that I rarely get time to put hours of run time on. I have had the battery for 3 years and the ol" H fires right up every time. I have 2 ott battery cables and there is still a noticeable ease in starting from a fully charged 6 to the 8. Old is correct I have yet to find a 8 volt battery charger....
 
(quoted from post at 19:11:38 01/28/10) any advantages to using an 8v..
I used an 8v in my Super 55 Oliver for several years.... only advantage I found was the 6v would last about 2 years and the 8v about 4. When the 6 was new, it was no problem, just didn't last as long. New cables didn't make any difference in how long they lasted. Never changed the VR. The 240U I have now had been converted to 12v before I bought it.
 
Have been aable to charge a 8 volt batery with a non automatic 6 volt charger. Need to keep an eye on it while charging. My automatic chargers will not work. Talked with a battery charger manufacturer and he told me the same thing. Hope this helpss.
 
We used to install a lot of them. But, they are kind of odd-ball and pricey now - and usually not worth the bother. Any gain in voltage at cranking will make any engine crank faster. A standard 6 volt system cranks at 4.5 volts. Change over to an 8 volt battery and it will be cranking at over 5 volts - and that does make a difference.

Besides the extra price of the battery, the main problem is this. Standard 6 volt regulator is adjusted to charge a 7.1 volts (approx.). THat will NOT charge an 8 volt battery. You have to adjust it to charge at 8.5 volts or even a little higher - or it will not work. Many 6 volt generator and reg set-ups can just barely handle it.
 

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top