I've got an 09 Civic Si with a 200W Kicker amp and 1200W AQ1200D amp. Just installed about a week ago, I've had no problems with lights dimming with stock electrical. I have a replacement Kinetic HC1400R battery ready to go in.
1. Should I wait for the stock battery to die or should I replace it now?
2. If I wait, how long will the 1400R sit on the shelf and be OK?
3. If I replace the stock battery now, should I save the stock battery and how long will it sit on the shelf without going bad?