Hey everyone. I'm considering getting into mid-power rocketry with the Initiator Starter Kit. Only problem is I don't want to have to be tethered to my car and the Interlock controller (as well as every other 12v controller) require a car battery. I've heard of some people creating custom cases for motorcycle batteries but that adds the cost of the battery and the charger. I was just wondering what some of y'all were doing to get your rockets off the ground other than the car battery, or if you're happy just using the car battery. Thanks.