Group 1 or 2 battery

[marc silva]

I have read that a group 2 battery fits the box better but are more expensive. If it is true that it fits better because the size is a little larger, does it mean it’s a better battery because it costs more? Thanks for the advice. Marc

 

[Bob Bidonde]

This slide should help you:

 

[Bob C]

Group 2 L 10 3/8, W 7 1/8, H 9 3/8

 

[Model A Ron]

I use a 6v Optima and love it......never had to jump it

 

[BillCNC]

I use a 6v Optima and love it......never had to jump it

Same here. I switched over after I had 2 group 1's fail withing 3 years. I've had the Optima 6v for a couple of years now without a single issue, ... well, that wasn't my fault like leaving the lights on, or from an occational sticking brake pedal.

Regards
Bill

 

[ModelA29]

[FONT=&quot]As the demand for 6-volt batteries waned in the 1970s, eventually many suppliers made the decision to offer only Group 1 batteries to replace both units. This occurred because enough amps could be put into a modern Group 1 battery to sufficiently power vehicles that originally used the larger Group 2 type, and because there was a much larger need for the Group 1 battery, which was used extensively in 6-volt tractor applications and dual-battery 12-volt applications. A modern Group 1 battery contains over 600 cold cranking amps and is more than enough to power any early 6-volt system.[/FONT]
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[FONT=&quot]https://www.hemmings.com/stories/article/6-volt-batteries[/FONT]
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[FONT=&quot]I also vote for the Optima - buy once cry once........
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[ronn]

Ive had 3 optima 6 volts over the yrs and loved them. Two worked great and one was a dud.


I paid 125-150. at the time. I think they are easily double that now.


I am now using Rural King 6 volts for 50. each. they are fine by me. I dont drive often.

 

[CarlG]

6 volt = Group 1
12 volt = Group 25