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six volt v.s. eight volt battery
#792534 Wed Oct 26 2011 11:22 PM
Joined: Sep 2011
Posts: 11
bob1 Offline OP
New Guy
I have 51 burb with 6 volt system that I would like to keep original was told to put a 8 volt battery in for more zip any pros or cons to be aware of any advise would bo appreciated Thanks Bob

Re: six volt v.s. eight volt battery
bob1 #792542 Wed Oct 26 2011 11:48 PM
Joined: Sep 2001
Posts: 30,152
ace skiver

No, No, No.

That is an unnecessary admission of ignorance and defeat.

Fix the problem.

This topic comes up so often that we need to put an explanation post (or Tech Tip) to explain why 8v is not fixing the problem(s). Switching to an 8v battery is avoiding the problem(s).

Tim []
1954 3106 Carryall Suburban [] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. []
Re: six volt v.s. eight volt battery
bob1 #792558 Thu Oct 27 2011 12:19 AM
Joined: Oct 2006
Posts: 11,766
Extreme Gabster
I see Tims nimble fingers beat me to it, Bob, but I'll still post my composition.
No need to trade in your 6v battery for one that doesn't belong in that truck. That sort
of a change is what we commonly refer to as just putting a Band Aid over the problem.
And if you do that you are just creating more problems such as charging and shortened
life span of your bulbs and other electrical devices that were made for 6v.

If your having starting problems fix the problems. A good new 6v battery, clean
connections at all points, battery cables in good condition and of the proper size, a starter
in proper operating condition, a engine that's not worn out and that is tuned up properly.
Follow up on all that and your truck will start every time and your lights will be just as
bright as if it were a 12v system.
Denny Graham
Sandwich, IL

Last edited by Denny Graham; Thu Oct 27 2011 12:21 AM.
Re: six volt v.s. eight volt battery
Denny Graham #792635 Thu Oct 27 2011 03:31 AM
Joined: Sep 2011
Posts: 11
bob1 Offline OP
New Guy
Thanks just bought my 51 burb want to do it right You convinced me staying 6 volt

Re: six volt v.s. eight volt battery
bob1 #792722 Thu Oct 27 2011 02:12 PM
Joined: Mar 2011
Posts: 940
Shop Shark
I agree with these guys. My '51 came with an 8v and what seemed like a million electrical problems. After cleaning all the contacts, replacing the main cables, a couple bulbs and swapping in a new 6v battery, everything is as good as new and the 6v is plenty strong. Truck starts on the first stomp and the lights all shine bright.

Re: six volt v.s. eight volt battery
BLUEMEANIE #792755 Thu Oct 27 2011 04:22 PM
Joined: Jan 2000
Posts: 124
Shop Shark
There is also such a thing as a 6-volt alternator so you get the same benefits as a modern alternator type of charging system without having to upgrade to 12-volts...go to for more info

Moderated by  Rusty Rod 

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