Very slow DC charging

[alokmenghrajani]

Got my car's software upgrade done today.

DC charging on a 150 kW charger, from 67% to 78% took 15 minutes to add 9.9kWh. My calculations indicate an average charge rate of 40kWh. Outside temp was 4C/40F and I drove the car for about 10-12 minutes before reaching the charger.

Something still feels wrong. I'm a long way from the car's advertised 150 kW DC charging speed. I'm also 2x slower than insideevs.com report for the 60%-80% range.

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[SWO]

Got my Mach-E (ER AWD) in August 2021. Always charged it at home until a few weeks ago, when we went on our first road trip. Discovered that the DC charging is very slow. So I have been trying different chargers, with different charge levels and logging everything. Here is what I have so far:
- 1/14/2022, charged at ~27kW from 57% to 80% on a charger rated 50kW.
- 1/14/2022, failed to DC charge (got 5 rings). Had to spend ~3h slow charging.
- 1/16/2022, failed to DC charge at first (got 5 rings). Called Ionity and they activated the charger remotely and the car charged. I failed to log how much+how quickly the car charged.
- 1/20/2022, charged at ~24kW from 74% to 80% on a different charger rated 150kW. Next to me, a Tesla was charging at 62kW.
- 1/28/2022, charged at ~36kW from 57% to 74% on the same charger as above with no other cars plugged-in.
- 2/1/2022, charged at ~28kW from 59% to 66% on a different charger rated 160kW. Next to me, another Tesla was charging at 90kW.

Contacted my Ford dealership, they said there are software updates available for my car (in-car screen doesn't show any updates) but they want to wait for the following update for some reason. Wasn't very satisfied by their response.

Anyone else seeing slow DC charging speeds way off from the advertised 150kW?

AC charging at home seems to work fine, I calculated ~11kW.

Are you sure you're not coldgating? I was surprised how long it took my battery to warm up after sitting overnight at 0F.

 

[alokmenghrajani]

Are you sure you're not coldgating? I was surprised how long it took my battery to warm up after sitting overnight at 0F.

Could be. My car is however parked in a garage, so the temp isn’t 0F. I’m planning to get a OBD2 dongle, I might then have more data.

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