I'm not sure that there were actually new details here? The ability to join the two packs in series for a higher voltage was well known for a while now. It wil

I'm not sure that there were actually new details here? The ability to join the two packs in series for a higher voltage was well known for a while now. It will be interesting to see how they manage the claim of safe charging to 100%. Most other companies are doing that by adding a large buffer. It wouldn't surprise me if that is the case with GM as well.