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1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

Battery Upgrade?

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Old Aug 29, 2005 | 11:00 AM
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Battery Upgrade?

I have gotten around to pulling out the old battery from my '56 F100 and tried getting a new one at Sears. It's a 29NF size and Sears said that they don't make them anymore. I found one on-line at Interstate but wonder if it's worth changing the battery holder to fit the new width of the current batteries. Does anyone have any suggestions?
 
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Old Aug 29, 2005 | 11:04 AM
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Before you start doing metal work, I would check with a battery specialty shop. They can prob get you what you need without the hassle (and cost) of a new battery support. Good luck, Jag
 
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Old Aug 29, 2005 | 11:33 AM
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Yeah, what Jag said. Also, compare the sizes and the CCA. The modern batteries can usually provide the same or greater CCA rating than the older package. And the new Optima batteries are very compact.
Good Luck!
Kent
 
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Old Aug 29, 2005 | 11:51 AM
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I went with the Optima, can be mounted on it's side or even upside down if you so desired.
Otherwise I'd say get the battery that fits the existing box, not worth the work to change the box for something that will last for at least the next 4 years. By then who knows what we'll be using.
 

Last edited by AXracer; Aug 29, 2005 at 11:54 AM.
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Old Aug 29, 2005 | 01:04 PM
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Off the subject, but Ax, how do those things function without a vent? Hydrogen gas is generated by the acid. How is the pressure released in the Optima? Jag
 
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Old Aug 29, 2005 | 01:15 PM
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They use a gelled electrolite in a fiberglass mat wrapped around the lead. Gas is evolved during the charging cycle, but the case is designed to withstand the extra pressure (hence the shape) which as I understand is less than a can of soda and it's reconverted during the discharge. Hence it's a closed system.
 
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Old Aug 29, 2005 | 01:22 PM
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Thanks for the advice. I found a place in town that can order an Interstate battery and it's only $75 for one which isn't too bad. What is CCA?
 
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Old Aug 29, 2005 | 01:26 PM
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Cold Cranking Amps a way to measure the relative power of a battery for starting a vehicle.
 
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Old Aug 29, 2005 | 01:28 PM
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Cca?

CCA is short for Cold Cranking Amps, or the measure of how much power your battery has. The larger, the better for most applications. Its usually given at 0 degrees F, and 32.
 
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Old Aug 29, 2005 | 03:18 PM
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Ditto on the Optima battery. I got the yellow top and it cranks great. Not even a hint of slowing down.
 
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Old Aug 29, 2005 | 04:11 PM
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Red top is best for a vehicle that is driven daily, yellow for one that is driven only occasionally, especially if it has continuous slow discharge like an alarm system while not being driven.
 
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