Chateau_Nomad
Senior Member
RV LIFE Pro
Like they say, the devil is in the details.
Very low loads, like led lights, small motors, etc can be fed with even AAA batteries but when you come to heavy/continuous/life related (like an RV furnace) applications, it is a completely different ball game.
THAT is the reason for the different chemistry and battery configuration that does affect power density.
While in a small car cylinder cells are somewhat ok, in heavy applications, like an RV furnace or truck, for example, they have to move to a pouch style which in turn increase weight and volume.
The point is: The technology is not ready for prime time.
Our current systems to store energy are extremely efficient:
Its a plastic or steel container that is very cheap and can hold an enormous (compared to LiIon) amount of energy and until batteries can get close to that, Electrification of heavy power hungry applications is just a theoretical exercise.
Energy storage For comparison:
Tesla Model S battery capacity: 100 Kwh
MH Gasoline tank (80 Gallons): 2700 Kwh
MH Diesel tank (100 gallons): 4000 Kwh
MH Propane tank (88 lbs): 545 Kwh
So the smallest energy container in a Motorhome holds more than 5 times the model S battery.
5 model S batteries weight 6000 lbs.
That is 50% more weight than my MH payload capacity (~4000lbs)....
Efficiency...
https://en.m.wikipedia.org/wiki/Engine_efficiency#:~:text=Modern%20gasoline%20engines%20have%20a,used%20to%20power%20a%20car.
VS:
https://www.pcmag.com/news/report-tesla-model-sx-upgrading-to-more-efficient-electric-motors#:~:text=As%20Electrek%20reports%2C%20both%20the,an%20efficiency%20of%2093%20percent.
Now... get politicians and Wall Street out of the mix and let innovation take over.
