Quote:
Originally Posted by esfourteen
unless you aren't producing adequate voltage to charge the battery I wouldn't worry about it, size of the battery in this case will have more to do with CCA than holding a charge.
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Let's just say, with a 20% underdriven crank pulley and a motorcycle battery, whether the battery gets sufficient charge to keep starting the car depends largely on how you treat it. If I start it up and take it for a decent drive every day, it's fine. If I leave it cold for several days, and then go through a few start/stop cycles in the driveway testing something, it can get to the point where it won't start pretty quickly.
There are a lot of inbetween scenarios where I barely have enough CCA left to get the car going again after several short trips without a long recharge run (esp if it has recently been left off for days).