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Why 47?
Why 47?
I have the new gen 2 HWPC connected to a 100 amp breaker. The electrician who installed it set it to charge at 80 amps but my model x is set to charge at max 48 amps.
Would it be better to set the hwpc to charge at 48 amps?
Installed HPWC yesterday. It took 8 hours but that included 2+ hours of shopping and several hours of conduit measuring, cutting, and bending. Used a 60 amp breaker and setting # 9 to charge at 48 amps with the new chargers. We got the 25' version so we can charge anywhere in the garage. We used the pillar so we can one day put a Model 3 or another S on the left side of the garage where my Prius currently is. Works perfectly thanks to the help of my father in laws retired electrician friend helping me out. (I think I would have gotten it all correct but it's good to have an experienced hand present to make sure you do it safely and right).
If the HPWC had been wired to your fuse box with a telephone cord, it would still likely show the correct voltage. The issue is what is the voltage while it's charging the car? You can't detect bad wiring/connectors by measuring the voltage without a load.Well 245V across the terminals in the HPWC makes me think it's not my wiring.
I agree that in a walk-space, an overhead charging cable is the best solution:Just a quick post to show that I mounted my HPWC on the ceiling of my garage, so that it is not a tripping hazard. The excess is coiled up in the attic.View attachment 180116
My question is many-fold: 1) with an 80 amp line to the HPWC, how should the HPWC be configured to maximize my charge speed? 2) we haven't taken delivery of our MS90D but we didn't selected the High Amperage Charging option. Tesla's website says you need 80-100 amp line to paired with HPWC and High Amperage charging to take advantage of the 50+ mile/hour charge rate. 3) Since my charging line is on the low end of the requirements for 50+ mile/hour charging, what is the real-world charging rate going to be assuming i add the $1900 High Amperage Charging option? Curious to see if anyone has this setup and if its worth it to pay for that extra charging boost. I apologize in advance for non-technical description as I'm new to the EV/electrical stuff.
I just took delivery of my Model S 90D. I have the HPWC on a 100 amp breaker. It is set to allow max amps. I am still only pulling 48 amps. Any ideas? My car has yet to go below 100 miles of charge. Could this be why the battery is only calling for 48 amps instead of the full 80? I've attached a picture to show what's happening.