I'm planning to rip a bunch of CD's to the 9gb music box in my '09 G37 sedan. I would like to do most of the ripping while the car is parked in the garage. What I'm afraid of is draining my battery. I've already drained it once by merely programming the garage door buttons. (This was not long after a dealer service in which my battery was tested and was declared fine.) According to my service adviser, it doesn't take much to drain the battery apparently....he said something like 20 minutes of listening to the audio can sometimes drain the battery, which is a little disconcerting to me.
Anyway my plan is to connect a battery charger to the battery while I'm ripping CD's. Specifically I have ordered this charger from Amazon:
http://www.amazon.com/Battery-Tender-02 ... 00068XCQU/. This charger is supposed to be smart and will automatically avoid overcharging.
Question: is there anything wrong/dangerous with my plan to have a battery charger hooked up while the ignition is in ACC mode and the CD player is ripping songs to the music box?
Thanks
p.s. according to my service adviser, before you jump start the car, you need to make sure that the ignition is in LOCK (off) mode. Otherwise you can somehow damage the car. When my battery died that one time, I was unable to get the ignition to change from ON to LOCK, so he advised me to disconnect and then reconnect the negative battery terminal, which puts the ignition back to LOCK. Which makes me think I need to store a 10mm wrench in my car just in case I need to do the same trick again sometime when I'm away from home.