I'm pretty ignorant in this field: is that done to decrease dendrite formation during charging? Or to allow charging to happen faster? What's the advantage?It says 440V in the subtitles. Also, they filed a patent showing the use of a 450V battery that could be charged at 900V. It is really simple. You just have two 450V packs in parallel to operate the vehicle, then switch them to series for charging. It wouldn't be 440 miles while towing. We know that for sure.