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Old May 21, 2012 | 01:07 PM
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battery life?

I know its hard to find anything made right anymore, and batteries are no exception. Have some batteries from wallmart ( 700 cold cranking ) even when new had to plug in truck at freezing to make sure it would start. I have 12.5 volts on these 2 yr old batteries, but they appear to have no cranking power. How long can yall get batteries to last on a 7.3?
 
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Old May 21, 2012 | 01:17 PM
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Mine last about three years but its the heat of the high desert in SOCAL that shortens the life of them. When I lived in San Diego I could get 5-7 years out of them but up here they don't last long at all.
 
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Old May 21, 2012 | 01:18 PM
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You need a batt with at least 850 cranking for these trucks.
 
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Old May 21, 2012 | 01:19 PM
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im not sure 700cca is big enough for the truck
but 5-7 years AZ durlast gold
 
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Old May 21, 2012 | 02:21 PM
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Yup... 850 or more. 700 might not sound like a dramatic drop, but multiply that by two and your pair is 300 amps low. A little time goes by and that subdued CCA drops more.
 
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Old May 21, 2012 | 02:43 PM
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I have yet to see more than 3 years from a set of batteries here in suburban Philadelphia.

Ditto on the 850 CCA.

Chris
 
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Old Jun 6, 2012 | 11:51 AM
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Don't know if it makes a difference but I use Interstate batteries. The set in my KW are going on 8+ years and still going strong. Just put a pair in my 06 F350, the origional ford pair went 6 years but that is unusual for stock batteries.
 
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Old Jun 6, 2012 | 12:17 PM
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Get motor craft batteries at ford. $112 a piece iirc. Great warranty. I usually get mine replaced for free every three years from ford
 
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Old Jun 6, 2012 | 06:52 PM
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I get about 3 yrs on average. It's hot down here in the summers and I'm off road on job sites a lot. YMMV.
 
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