Good morning folks. I'm getting ready to hit the road for a month. Loafing around time is coming to an end. So yesterday my truck wouldn't turn over. This is understandable, since she hasn't moved for 2 months. Although I did crank her up a few times during my time off. My voltage gauge showed 11.4 V. I have a load meter and a charger at home to test and fire these suckers up, but I think I just might replace them.
My Columbia has 4 batteries with 625 CCA each. Should I buy these same ones (because I figure Freightliner knows what they are doing and these are sufficient), or should I bump the CCA up to 750-950? It's not like I continuously drive in Nunavut so I'm thinking to just upgrade a little to 750 CCA. What say you guys? How important ARE the CCA?
Or should I just wait and test what I have at home and recharge each one? The new ones will run me about $127 each at Velocity, and the CORE for the ones I have is about $34.
Replacing my truck batteries, how important are CCA numbers?
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by gekko1323, Mar 26, 2023.
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I always go with the highest CCA. It gets cold here.
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As far as CCA, the higher rated batteries tend to have slightly shorter lifespans than the lesser rated ones. The geometry needed for the increase in surface area for the higher amperage makes them slightly more fragile.
If you're running semi-synthetic or synthetic oil, you really don't need the high CCA to get good cranking speeds. Unless you're up in @AModelCat's kind of cold.
If it were me, I'd charge them and test them. I've got one of those handheld testers, and while it's technically not a high enough draw for group 31's, you'll know if there's a bad one.HoundDog7, Albertaflatbed, D.Tibbitt and 8 others Thank this. -
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One thing that is interesting, when I called the TA this morning, the 750 CCA are about $25 more expensive than the 950 CCA.Albertaflatbed, Rideandrepair and Hammer166 Thank this. -
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