Question on coding Rex to turn on below 75% battery level.

[alohart]

If you consider that one liter (0.22 gallon) of gasoline contains 10kWh of energy (of which 70% is wasted as heat in an ICE) it is really fascinating what we are dealing with here.

Exactly! The usable capacity of our 60 Ah battery pack could provide the energy equivalent to that contained in ~½ gallon (~2 liters) of gasoline yet I could drive ~100 miles (~160 km) on that energy under ideal conditions. That's the equivalent of 200 miles per gallon (1.2 liters per 100 km) which is far more efficient than any ICE vehicle.

 

[Dutchi3]

Bit off-topic, but the above fascinating facts show that driving on gasoline could be much cheaper than on electricity (10kWh from gas is cheaper than 10kWh of electricity), but efficiency saves us. I know Shell had developed a car in the past that drove ~200 miles per gallon. That would be much cheaper than driving on electricity, but Shell killed it for obvious reasons.