I'm a bit fuzzy on the auto-electric stuff here and after a reminder.
I've recently installed a winch which calls for a 650 cold cranking amperes battery. Current battery is 600 CCA.
(For what it matters amperes drawn by the winch on it's maximum line pull weight is 420A according to the book.)
CCA rating is based on 0c which it won't be when I'm using the winch. As cold kills the battery performance, am I right in thinking that on 10c - 35c days like we have in Victoria the battery will be able to provide well in excess of 600A while warmer and is actually suitable for the winch?
I did a Google and found some CCA/temperature calculator estimator thing which reckons between 10c and 35c the battery would be providing more in the 900 - 980 A range due to the increased temperature. Not sure what the calculator is worth though.
What do we think?