First time home charging - couple of questions

[Tooney]

Began charging my 4S at home for the first time. EVSE is 40 amp Wallbox Pulsar Plus on 50 amp circuit with NEMA 14-50 receptacle. Car is at 40 % battery capacity. Car display says that it is charging at 8.7 kwh.

1. Is 8.7 kwh charging rate on car display good/normal for EVSE that theoretically charges up to 9.6 kwh?

For first 15 minutes or so during charging, I heard a faint high-pitched hum. It was most noticeable when I put my ear next to front wheel right/passenger side. Eventually the noise stopped.

2. What is source of noise? Normal?

3. Car display gives a time tonight that charging will be completed. Is that original completion time estimate normally good?

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[W1NGE]

Began charging my 4S at home for the first time. EVSE is 40 amp Wallbox Pulsar Plus on 50 amp circuit with NEMA 14-50 receptacle. Car is at 40 % battery capacity. Car display says that it is charging at 8.7 kwh.

1. Is 8.7 kwh charging rate on car display good/normal for EVSE that theoretically charges up to 9.6 kwh?

For first 15 minutes or so during charging, I heard a faint high-pitched hum. It was most noticeable when I put my ear next to front wheel right/passenger side. Eventually the noise stopped.

2. What is source of noise? Normal?

3. Car display gives a time tonight that charging will be completed. Is that original completion time estimate normally good?

All.sounds good. Stick with it and see what the morning brings.

 

[Jhenson29]

1. Is 8.7 kwh charging rate on car display good/normal for EVSE that theoretically charges up to 9.6 kwh?

Yes, the 9.6 is at the EVSE. The actual rate for the battery will be lower due to losses.

See my pic here when I was on the 9.6:

https://www.taycanforum.com/forum/threads/my-evse-is-dead-update-4-reinstalled.7935/#post-113694

And I see anywhere from 16.4 to 17.2 at the car on my 18kW.

 

[Dslev]

Began charging my 4S at home for the first time. EVSE is 40 amp Wallbox Pulsar Plus on 50 amp circuit with NEMA 14-50 receptacle. Car is at 40 % battery capacity. Car display says that it is charging at 8.7 kwh.

1. Is 8.7 kwh charging rate on car display good/normal for EVSE that theoretically charges up to 9.6 kwh?

For first 15 minutes or so during charging, I heard a faint high-pitched hum. It was most noticeable when I put my ear next to front wheel right/passenger side. Eventually the noise stopped.

2. What is source of noise? Normal?

3. Car display gives a time tonight that charging will be completed. Is that original completion time estimate normally good?

Yes 8.7kwh is normal, it may fluctuate depending on a few factors, but should stick to that range. The noise you are hearing is the car regulating the batter temp for maximum efficiency. You should charge to 85% (some would say 80%), not 100%, on a normal day-to-day charge for best battery conditioning (set up your timer to stop at 85%, by the time you want the car ready in the morning). The time to "complete" the charge the car is now showing, is to 100% charge, which you should only do if you need more distance for a long trip. Hope this helps.

 

[Tooney]

Yes, the 9.6 is at the EVSE. The actual rate for the battery will be lower due to losses.

See my pic here when I was on the 9.6:

https://www.taycanforum.com/forum/threads/my-evse-is-dead-update-4-reinstalled.7935/#post-113694

And I see anywhere from 16.4 to 17.2 car the car on my 18kW.

Oh yes, I remember when you spent a couple days slumming with the rest of us 9.6 kwh riff-raff.

 

[Jhenson29]

Oh yes, I remember when you spent a couple days slumming with the rest of us 9.6 kwh riff-raff.

Days?! It was almost 3 weeks. I almost sold the car. ?

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