Here's my data, I suck at Excel I couldn't figure out how to make it look like yours. Make mine pretty.
I think you shouldn't include TotalDuration because it counts how long you left the plug in even after charging is complete. You should use ChargeDuration instead.

EndStateOfCharge	TotalEnergyDelivered	MaxChargingRate	TotalDuration	ChargeDuration
78%​	14 kWh	134 kWh	6 min 56 sec	6 min 44 sec
80%​	37 kWh	198.7 kWh	15 min 48 sec	15 min 43 sec
80%​	45 kWh	173.8 kWh	18 min 26 sec	18 min 19 sec
80%​	27 kWh	133 kWh	14 min 17 sec	14 min 11 sec
95%​	58 kWh	234.3 kWh	28 min 1 sec	27 min 55 sec
85%​	28 kWh	134.1 kWh	17 min 12 sec	16 min 40 sec
80%​	39 kWh	151.7 kWh	18 min 45 sec	18 min 14 sec
90%​	49 kWh	151.7 kWh	26 min 32 sec	25 min 49 sec
80%​	45 kWh	281.4 kWh	14 min 25 sec	14 min 16 sec
98%​	30 kWh	281.4 kWh	30 min 4 sec	29 min 53 sec
80%​	33 kWh	281.4 kWh	15 min 18 sec	14 min 39 sec
95%​	38 kWh	281.4 kWh	35 min 50 sec	31 min 9 sec

 

Here's my data, I suck at Excel I couldn't figure out how to make it look like yours. Make mine pretty.
I think you shouldn't include TotalDuration because it counts how long you left the plug in even after charging is complete. You should use ChargeDuration instead.

EndStateOfCharge	TotalEnergyDelivered	MaxChargingRate	TotalDuration	ChargeDuration
78%​	14 kWh	134 kWh	6 min 56 sec	6 min 44 sec
80%​	37 kWh	198.7 kWh	15 min 48 sec	15 min 43 sec
80%​	45 kWh	173.8 kWh	18 min 26 sec	18 min 19 sec
80%​	27 kWh	133 kWh	14 min 17 sec	14 min 11 sec
95%​	58 kWh	234.3 kWh	28 min 1 sec	27 min 55 sec
85%​	28 kWh	134.1 kWh	17 min 12 sec	16 min 40 sec
80%​	39 kWh	151.7 kWh	18 min 45 sec	18 min 14 sec
90%​	49 kWh	151.7 kWh	26 min 32 sec	25 min 49 sec
80%​	45 kWh	281.4 kWh	14 min 25 sec	14 min 16 sec
98%​	30 kWh	281.4 kWh	30 min 4 sec	29 min 53 sec
80%​	33 kWh	281.4 kWh	15 min 18 sec	14 min 39 sec
95%​	38 kWh	281.4 kWh	35 min 50 sec	31 min 9 sec

Quite right, edited my original post above. Away from my computer until tomorrow night but I’ll update then.

 

I was not aware that I could export my charging history as a CSV file at all. Thanks for that.

Here is a redacted copy of mine. I have removed the columns you say you don’t care about as well as the rows for the sessions that I charged to over 80%. A couple of times I had to use the 150kW chargers as the 350kW chargers were either in use or ICEd, not sure which sessions those might be but they will skew the maximum charge rate down.

 

I’m happy to get your over 80% charge data too. I just want all the data and then will also filter out the over 80% for comparison.

 

delete.

 

And finally, all three users combined to show what all I have so far:

 

Ambient temperature is not relevant. The temperature of the coldest module in the battery pack is the most important factor determining the charging speed.

Charging speed you get when min battery is at 20c with a...

In testing, we have only one fast charger that have 350kw capacity near where I live. I tested it. But I can't compare with another Charger with this capacity (Our faster are normally 100 kw here.) Since still no preheating battery available here. I got a hot day for winter here at 15 Celsius...

www.ioniqforum.com

Battery temperature can be read with a smartphone and OBD2 dongle.

 

Yes, agreed, but most of the time my battery min is pretty close to the ambient temperature (even after driving quite a bit). That may be specific to my general temps since I got my car in January, which are pretty flat between 40-50°F most of the time.

 

Anyone want to share their Electrify America charging data for science?

Sharing scientific data for science makes sense. Sharing EA’s data for science doesn’t. I have no faith in their data, given their report that my very first charge, which brought my 77kWh battery up from 24% to 80%, delivered 95kWh of energy.