Hi cornelius, not from GM. I think it is a Crytalite product, it came with a battery bag I just purchased.
Monkey, yep, for the new build
hopefully for dual mini's
. the ignition key could make things a little more convenient. I'm just a bit apprehensive at present on buying a dual mini kit until it has been tried and test with possible amp limits. The battery I have is a 54v 16ah lithium ion pack