Greetings
I have a new 800cca Autocraft battery in my car purchased in November. How long can I run the radio with the engine off? Also, would it cause a serious drain to keep my GPS plugged in full time? Of course it would be off, but still drawing current to keep the GPS unit's battery topped off.
I see on the battery label "Reserve Capacity 120 minutes". I assume that means the battery could keep the engine running for 120 minutes should the alternator fail completely?
Thanks.