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Discussion Starter #1 (Edited)
I did not intend on letting the battery get so low, but the range meter over estimated! I went from about 48% down to 2% on a 102 mile drive in eco, no more than 60mph. Immediately plugged into my home 40 amp level 2 charger. Over about 9 hours, the charger said it put in 64KW! I know the battery is 64KW and so perhaps a little lost to inefficiency?
My confusion is that after it fully charged up, the Niro read out for battery level was 92%. So is the readout wrong or did the car not get all of the 64KW that the charger sent? Notable that the charge was set to go to 100% on the preset in the Niro just this time since I wanted to see how much it would take. Normally just charge to 80%.
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UPDATE!
i washed and then drove it to dry out the wheels/brakes, down to a readout of 88%. Then plugged it in again. This time it fully charged to a readout if 100% in about 1:15 and 9.3kw.
so I would guess there is inefficiency with charging so that the charger says one number, but in reality the car takes a little less than that?
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Yes, there are losses from charging. I didn't think it would be that high, but perhaps being at such a low SoC had something to do with it.
 

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Didn't do all of the math, but remember that the true capacity of the battery is 67.1 kWh. The USABLE capacity (that is, what is available to us users) is 64 kWh. The EVSE may not "know" the difference. The charging losses are about 5%, according to what I've seen.
 

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Davidtm is correct. There are losses due to inefficiencies of charging and the EVSE being used. Some are more efficient than others and the state of charge of the car can also affect the charge rate. If you have a less efficient EVSE and you have a very low state of charge it will take a lot more than 64kWh to get to 100% and as stated, the actual battery capacity is more than 64kWh, although this is accounted for in the SoC display of the car.
If you want to know more information about the battery SoH and actual SoC, then there are 2 options:
1) Torque Pro app and a Bluetooth OBD2 adapter:
or a more plug and play...
2) Dedicated module and Bluetooth OBD2 adapter:
 
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