Anyone know if these will charge 80% off the battery in 30 mins - or are they slower/ faster ?
Does anyone know what speed this charges at? Is it slower than the superchargers at Squamish or Tsawassen? Apparently constant use of Super Chargers is also not good for our battery
This charger appears to be the new urban charger, capped at 72kW.
Older style / highway superchargers run at up to 120kW.
Note that smaller battery Model S and Xs (e.g. the 75D that I have) can only take about 96kW of charge rate, so will never get the full charge rate of the highway superchargers. Bigger batteries in the Model S and X can get the highest charge rate.
I saw mine bounce momentarily up to 99kW once, and often it flirts with 97kW or 98kW for fractions of a second when first revving up, if I start charging with a relatively empty battery.
I'm not sure if the Model 3 with long-range battery (which I believe is about 75kWh) is also capped at ~96kW charge rate or not.
Anyway, no, you won't get your battery to 80% in 30 minutes with these chargers:
72 kW x 1 hour = 72kWh of energy (which is the approximate "usable" energy in my 75D--I think I read the Model 3 long range battery has an actual usable > 75kWh energy in it though).
therefore 72 kW x 30 minutes = 36kWh of energy
36kWh is about 1/2 my battery charge; it's probably slightly less than 1/2 a Model 3 long range battery.
So, IF the charger charges at its max rate for 30 straight minutes (which it very well likely will NOT--plus there will be a little ramp up time of maybe a minute to start anyway), then you will have slightly less than 50% charge, NOT 80% charge.
And, no, don't use superchargers for charging all the time if you can avoid it--the experts suggest it decreases life span of the battery (although I feel like I've seen empirical evidence that it is NOT harming life, or did I dream that?).
Much more importantly, though, I think, is do NOT charge to 100% regularly. Do it when you're going to drive huge distances, for sure. Don't worry about that. But do NOT do it every single time you charge for daily driving. THAT will degrade your battery faster.
I mention that because if you're a condo dweller and using superchargers like gas stations for regular charging, you might be tempted to charge to the max to decrease your # of visits. Don't.
Dr. Dahn at Dalhousie (Tesla's main academic battery guy) tweeted once to charge to 70% on a daily basis. Don't let the battery die; don't charge it full. That is probably the best wisdom to maximize battery life.
(Not that this will matter too much. Your battery is big enough that small decreases in its ability to hold charge won't affect your life in any real way over the life of your car.)