No electric vehicles that I am aware of use heat pumps to warm up battery packs in sub-freezing temperatures. None of the documentation that you have provided demonstrates that any models are currently using heat pumps to do this. Show us specs where a manufacturer is claiming to use a heat pump for this application in one of their vehicles. Can you even find us a Youtube video where an owner is claiming that a heat pump is being used to preheat the battery at a charging station in sub-freezing temperatures?
I am not the one who is being "obtuse" in this discussion. Many have tried to correct you, but you persist in arguing about something that you have provided ZERO documentation for.
And yes, I have serviced units in vehicles and homes and also including refrigerators and freezers. I have equipment, tools, knowledge and experience, something which you unfortunately do not seem to have. You simply do not seem to understand the limitations of heating and cooling equipment and their application in this case.
Well, that's it then. I'm wrong. When I show you a heat pump that can work down to 15°F, to you it doesn't exist so I'm wrong.
Even when I concede (before your first post to me no less) that below that temperature then resistance heating is required, to you I've made no such concession so I'm wrong.
You win.
https://www.motorbiscuit.com/heat-pumps-improve-electric-vehicle-driving-range-winter-temperatures/
EV batteries are sensitive equipment, and they need to be kept at a certain temperature in order for the EV to run well. Most EVs will consume power to heat up its battery, and as such, heat pumps can help out here too. In fact, efficient heat pump designs can warm up the EV’s battery without spending that much power, as it instead can use waste-energy from the EV’s motor.
On top of that, the temperature of an EV battery can affect how fast it charges. In order to speed up the charging process, some automakers precondition their batteries so that they will hit the optimal charging temperatures and deliver a fast charging experience. Once again, this is another area where heat pumps can play a role, as they can heat up an EV’s battery and precondition it for the optimal charging temperature.