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What's proper cranking voltage? 700

posted by  austi012 on  Mon Mar 10 13:33 CST 2008
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last visit: Sat Jun 9 05:38 CST 2012
[RELATED]

Here's the deal:

The battery I've been running all winter is a type 84 that used to go in my wife's Odyssey (long story as to how I would up with an extra). And it's fine.

But I threw that one in there as a stopgap about 2 months ago, fully intending to put in a new battery specific for the Volvo. And I bought a 740-specific one, but never put it in, since the Odyssey's battery seemed to be working fine. And the brand new Volvo-specific battery just rode in the trunk and gave me the occasional jump start.

BUT

I just examined the Odyssey battery, and it has about 20 fewer cold cranking amps than the Volvo one. And if this hypothesis is correct, and I'm getting a voltage sag during cranking on cold mornings that's making the computer lose its tiny mind, that could be the root cause. So I just put the beefier battery in. 20 more CCA is 20 more CCA.

Maybe it will work and maybe it won't, but it's something to try, at least. More power certainly won't hurt.






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