TL;DR: When using Wall Connectors in load-sharing, will the current fluctuate 2A when only one car is plugged in?
I recently installed two Gen 2 Wall Connectors with load-sharing in my garage to prepare for my wife's Model Y along with charging for my Model S.
Strangest thing happens when charging with either connector: Every few minutes, the current to dips from 40A to 38A and then goes back to 40A after 10-60 seconds (example charge from TeslaFi attached). At first, I thought it was my wiring so I double-checked every connection, replaced both 14-50 outlets, and even re-ran a power wire to no avail (thought it may have had a broken connector during install). It doesn't do it every time, which is even more frustrating.
The last test that I just finished with was:
1. Turn off breaker
2. Disconnect WC2 (slave)
3. Power on
4. Charged car with WC1 (master) and got full 40A
5. Reconnected WC2 (NEMA 14-50 pigtail, I'm not that crazy)
6. Observed car current drop to 38A and bounce back to 40A
7. Continued dropping to 38A and bouncing to 40A
8. Switched comm wires and made the former slave the master
9 Same results
Is this normal behavior for WCs on load-sharing?
I recently installed two Gen 2 Wall Connectors with load-sharing in my garage to prepare for my wife's Model Y along with charging for my Model S.
Strangest thing happens when charging with either connector: Every few minutes, the current to dips from 40A to 38A and then goes back to 40A after 10-60 seconds (example charge from TeslaFi attached). At first, I thought it was my wiring so I double-checked every connection, replaced both 14-50 outlets, and even re-ran a power wire to no avail (thought it may have had a broken connector during install). It doesn't do it every time, which is even more frustrating.
The last test that I just finished with was:
1. Turn off breaker
2. Disconnect WC2 (slave)
3. Power on
4. Charged car with WC1 (master) and got full 40A
5. Reconnected WC2 (NEMA 14-50 pigtail, I'm not that crazy)
6. Observed car current drop to 38A and bounce back to 40A
7. Continued dropping to 38A and bouncing to 40A
8. Switched comm wires and made the former slave the master
9 Same results
Is this normal behavior for WCs on load-sharing?