Yes, not revving it high before operating temp is reached is a very good idea.
I highly recommend buying a maintenance battery charger, whether a CTEK or Battery Tender. Hook it up to the posts under your hood. You can leave it hooked up as long as you want, or whenever it won't be used for X amount of hours, and be more regular in the winter, as colder temps makes the battery's capacity go down. It will pay itself off, I can just about guarantee you this.
I cannot answer your question, sorry, who knows though. We know that lots of cold starts is not good, but what can ya do?