Those are usually for running off a power panel on a starter box or that battery is for leaving in a field box for an airplane. Do you really want to carry around something the size of a 6v battery? I have the ignitor with the leads to plug into my starter box power panel but have to say it's really for a last resort type of thing. The leads always find their way into the tires and it's a game I'd rather not play with my truggy. I have a few different ones, the McDaniels are pretty good, and the dynamites are fine too, just remember like anything else, to charge your batteries regularly and not leave it sit for weeks. I've used one through an entire weekend of racing on a single charge. Also you can buy an individual single sub-c cell of a higher rating to put in there.