And I highly suggest ordering another battery, along with another 1/0 kit to hook up that battery. You won't be happy if your car drops to 10's or 11's and then your alternator or battery goes, or both.
My friend recently was dropping to 10's, I told him to fix it or he'll regret it and **** will break. He didn't. His alternator/voltage reg went, and started running at 15.9 volts. This in turn boiled his battery. Much more expensive than he expected. So now he's selling the car. Haha.