The 7v lithium ion battery packs use the main style connector I believe.Thanks Obo, ... I was thinking it might connect to a Li-on battery as an alternative power source when away from the bike, but you're closer to the answer.
Hope you don't mind a little terminology correction:Recently purchased Gerbing 12V EX Pro heated pants. I pulled the jacket connector through the zipped pocket and out came a rca-style connector in addition to the SAE connector. What is the rca connector for?