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I did this a few months ago on my Ford Superduty.
There were two batteries, they both died after five years (the window on the top showed red and stayed red). They were 650 CCAs. The book specifies the standard battery requirement is 650 CCA and an optional setup is 750. I think it's overkill but it's done. The prices were lower than another brand with less CCAs plus this had a longer warranty. Are there any problems with getting more CCAs than are needed?
The replacements I got were Bosch 825 CCA, 9 year warranted batteries, 4 year full replacement, then 5 year at a prorated schedule. I forgot what I paid, but I want to say about $200 with taxes and core refunds for both batteries out the door.
These batteries provide 825 CCAs @ 0 degrees and 1000 CCAs at 32 degrees. I have never started my truck at low temps. Do the CCAs go much higher at higher temps? The truck starts like a champ now, but am I cranking too much amps? Does anyone know how this works?
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