Pinkythelabrat
A2OC Donor
Electrically powered heating is always going to be an issue but why not consider sticking with some fossil fuel for that - a Webasto diesel or Eberspacher gas heater would give you a very reasonable amount of heat for a small mass considering. Far better than the battery mass would need to be. Electric motors will still give some heat but 80% plus efficiency suggests not much and certainly not from rest.
There is always the option of a cheaper secondary battery pack ‘range extender’ which you could load into the boot and connect up when larger range was needed. Might mess with the balance a bit but a few lead acid batteries would give a few hundred extra amp hours. Or... a very small diesel or petrol generator on a roof rack? seriously though, hydrogen fuel cells are coming along pretty nicely so it might me relatively possible in the near(ish) future to load a small H tank and your generator inside a car to give you some current into the batteries to provide additional range. I did read an article where it described the progress of the technology - it was something like the equivalent amount of H that could be stored in a tank about the size of a couple of motorcycle tanks would previously have taken a vehicle the size of an 18 wheeler to transport - mind boggling!
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There is always the option of a cheaper secondary battery pack ‘range extender’ which you could load into the boot and connect up when larger range was needed. Might mess with the balance a bit but a few lead acid batteries would give a few hundred extra amp hours. Or... a very small diesel or petrol generator on a roof rack? seriously though, hydrogen fuel cells are coming along pretty nicely so it might me relatively possible in the near(ish) future to load a small H tank and your generator inside a car to give you some current into the batteries to provide additional range. I did read an article where it described the progress of the technology - it was something like the equivalent amount of H that could be stored in a tank about the size of a couple of motorcycle tanks would previously have taken a vehicle the size of an 18 wheeler to transport - mind boggling!
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