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I am confused over charging rate

Chickenlittle

Banned
Sep 10, 2013
2,781
4,943
Virginia
using a 240 volt 80 amp tesla wall unit. My old modelS with dual chargers would charge using 40 amps on each charger at 66 to 68 miles an hr. My model X with 72 amp charger puts on 38 miles an hour. I do not understand why the rate is not higher and certainly glad I got the 72 amp charger
 

animorph

Active Member
Apr 1, 2016
2,134
1,529
Scottsdale, AZ
Make sure the car is set to allow 72 amps.
Make sure the car is able to set to 72 amps.
If car tops out at 48 amps you may need to talk to a SvC to update you for 72 amps.
There are a few threads with "lots" of people that paid for 72 amps but got 48 amps.
 

AnOutsider

S532 # XS27
Apr 3, 2009
11,957
200
At 72A we get 46mph charge rate. We get 60mph at 80A in the S. 72 is 90% of 80, so shouldn't we get like 54mph in the X?
 

FlatSix911

Porsche 918 Hybrid
Jun 15, 2015
6,651
6,110
Silicon Valley
using a 240 volt 80 amp tesla wall unit. My old modelS with dual chargers would charge using 40 amps on each charger at 66 to 68 miles an hr. My model X with 72 amp charger puts on 38 miles an hour. I do not understand why the rate is not higher and certainly glad I got the 72 amp charger

Also note that the charge rates in MPH are different for the Model S and X. (34 vs.30 at 48A and 52 vs.46 at 72A)

Model X charger upgrade.PNG


Model S charger upgrade.PNG
 

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