8 volt battery

J

joedaless

Member
Hi all,
I have a 1941 Ford Business Coupe. The system is set up for an 8 volt battery. Can anyone tell me what size I should be looking for in an 8 volt battery. Someone has recommended a golf cart battery. Will that fit in the battery tray?. I need to know the type and size I should be looking for.
Any and all help will be greatly appreciated..

Thanks,
Joe D
 
Joe
I measured my 8 volt Golf cart battries & they are aprox 10 1/4" long X 7 1/4" wide X 10 1/4" deep

~~Walts37~~
 
I'm not sure of your location but here in Michigan we have Tractor Supply stores that have 8V battery's. I bought one and ran it in my 29 model A and it fit the battery box just fine. So if you have a T/S store near by they should have one.
 
joedaless said:
Hi all,
I have a 1941 Ford Business Coupe. The system is set up for an 8 volt battery. Can anyone tell me what size I should be looking for in an 8 volt battery. Someone has recommended a golf cart battery. Will that fit in the battery tray?. I need to know the type and size I should be looking for.
Any and all help will be greatly appreciated..

Thanks,
Joe D
Click to expand...

How do u set one up for 8 volts. Charles
 
I'd go back to 6 volts or forward to 12 volts. Eight volts is the red-headed stepchild of the auto industry. Any 8 volt "setup" is like a Rube Goldberg machine, meaning that you gotta tweak things outside their designed tolerances for it to work.

Get a 6 volt battery and either adjust your regulator or just buy a new regulator.
 
Get a 6 volt and a 6 volt altenator. Optima works good for a lot of us. They have a full replacement for 3 years, after that you are on your own on borowed time. There will be a lot of posts stateing 10 years etc but Optima knows the expected life. Even at the minimum 3 years it's worth no acid problems. G.M.
 
I agree with G.M. on the optima I have two 6 volt & one 12 volt no acid or corrosion problems.
Gary.
 
I'm with you George, when I bought my 37 the firewall was a mess from acid and took a lot of time and money to fix the damage. I went with the 6v optima and a dummy case to hide it and put a ford sticker on it and most people think it's ford battery. Been 6 yrs and still going strong. Worth thee extra money in my book.
Don.
 
I had an 8 volt battery already installed in a Model A that I purchased. Could not tell any difference in use from a 6 Volt and it only lasted about one year. I have read that when using an 8 volt on a 6 volt charging system the 8 volt is never completely recharged to the full 8 volts so in effect it is reduced to same as a 6 volt. Maybe that is what the guys are refering to about having to modify/tweak the electrical system above.
 
You can adjust the 6 volt generator or voltage regulator to charge the 8 volt battery but that's not the end of the problem. ALL the light bulbs have less life, the coil will run hotter and the 6 volt instruments could be subject to an early failure. If a lot of night driving is being done adjust the voltage regulation to 7.6 - 7.65. If all day driving 7.35 won't over charge the battery which will effect the life of the battery. G.M.
 
A lot of 6v dim headlight problems are likely a result of excessive voltage drops along the wiring, fuses switches, and bulb connectors in the path between the battery and the bulb. If you have this problem, first measure across the battery terminals with the engine running. It should be around 6.7 to 7.2v. If this is so, then measure directly across the bulb, by probing the center contact to ground. You should still have the same voltage less say .25v or so. If not start checking and cleaning all the wiring in the path until you get the proper voltage. Both 12 and 6v bulbs have the same candle power, but the 6v require 2x the current for the same illumination.
 
B_man_Al said:
A lot of 6v dim headlight problems are likely a result of excessive voltage drops along the wiring, fuses switches, and bulb connectors in the path between the battery and the bulb. If you have this problem, first measure across the battery terminals with the engine running. It should be around 6.7 to 7.2v. If this is so, then measure directly across the bulb, by probing the center contact to ground. You should still have the same voltage less say .25v or so. If not start checking and cleaning all the wiring in the path until you get the proper voltage. Both 12 and 6v bulbs have the same candle power, but the 6v require 2x the current for the same illumination.
Click to expand...

Agreed 2X
 
Heaven forbid, you may also FIX the problems that someone else (previous owner) had masked over with an 8v battery.
Six volt batteries work just fine IF, and here it comes... the electrical system is operating as designed.
 
Re: 8 volt battery...THANK YOU EVERYONE

Hi All,
Just want to thank all my Ford Barn friends for helping me along. You have all been a big help... Thanks again.

Joe D
 
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