DCFC chargers that work with 2019 Kona

Thank you Wayne and SkookumPete.

@electriceddy:

I connected using the Greenlots app on my phone. The nice part about the app was that I was able to plug in the DCCombo head as the car that was actively charging was using the Chadmo line. I was able to see when they finished in the app from the comfort of the restaurant kitty corner to the charger and hit start charging on the app.

Now that I have pen and paper in front of me, I’ve calculated that my average rapid charging rate reached only 35.66 kW, approximately 29% less than the maximum 50kW speed for that charger. Is there someone I should be contacting at BC Hydro electriceddy? Thanks very much.

BC Doc

PS Yes, the charger you linked to is the one. The parking layout is less than ideal— there is room for two EVs to park side by side but the spots aren’t laid out properly (paint worn off, spot too small and straddles dirt). I pulled beside the charger in the alley to hook on which is suboptimal and only questionably legal in terms of local parking bylaw. I may reach out to City of Vernon after the long weekend to try and get it polished up.
 
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BC-Doc said:
Thank you Wayne and SkookumPete.

@electriceddy:

I connected using the Greenlots app on my phone. The nice part about the app was that I was able to plug in the DCCombo head as the car that was actively charging was using the Chadmo line. I was able to see when they finished in the app from the comfort of the restaurant kitty corner to the charger and hit start charging on the app.

Now that I have pen and paper in front of me, I’ve calculated that my average rapid charging rate reached only 35.66 kW, approximately 29% less than the maximum 50kW speed for that charger. Is there someone I should be contacting at BC Hydro electriceddy? Thanks very much.

BC Doc

PS Yes, the charger you linked to is the one. The parking layout is less than ideal— there is room for two EVs to park side by side but the spots aren’t laid out properly (paint worn off, spot too small and straddles dirt). I pulled beside the charger in the alley to hook on which is suboptimal and only questionably legal in terms of local parking bylaw. I may reach out to City of Vernon after the long weekend to try and get it polished up.
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Charging rate is influenced by charge-level of the battery (and other factors). Today I charged from 13% to 80% in about one hour at the DCFC at Mission, BC. The charging rate at the beginning was 45 kW, but it was only 25kW near the end of the session. I've seen graphs showing a decline in charging rate as the battery charges, with a greater decline beginning at about the 70% level. Ambient temperature was 28 degrees.
 
Kitsilano said:
There is a sign, "30 Minute Limit," at the BC Hydro DCFC at Wesbrook Village, UBC. Users observe this limit if someone is waiting.
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Good to know Kitsilano. No such sign up in Vernon. People here seem to be hooking up to the charger then disappearing for errands (understandable). Return when app shows charge complete.

I get the sense from the comments left on the apps that a small number of folks may be using the level 3 charger in Vernon as their primary charger (same people checking in over and over). It makes me wonder if level 3 chargers should be placed between cities/outside cities instead of in cities so that people who are travelling long distances are the people actually using them. Food for thought....
 
Kitsilano said:
Charging rate is influenced by charge-level of the battery (and other factors). Today I charged from 13% to 80% in about one hour at the DCFC at Mission, BC. The charging rate at the beginning was 45 kW, but it was only 25kW near the end of the session. I've seen graphs showing a decline in charging rate as the battery charges, with a greater decline beginning at about the 70% level. Ambient temperature was 28 degrees.
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I later received email from Greenlots Team: "You have used 46.333 kWh for 1 hour 3 minutes."
 
I received a similar e-mail from Greenlots:

“Your vehicle has stopped charging at 33090, City of Vernon. You have used 31.504000 kWh for 0 hour(s) 53 minute(s). “

So only charging at 70% of the charger’s 50kW speed.
 
BC-Doc said:
I received a similar e-mail from Greenlots:

“Your vehicle has stopped charging at 33090, City of Vernon. You have used 31.504000 kWh for 0 hour(s) 53 minute(s). “

So only charging at 70% of the charger’s 50kW speed.
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Hmm. So why the difference? Was it the difference in chargers, or cars, or ambient temperature, or what? The difference was 0.141 kWh/minute. Is that significant? Ambient temp at Mission was 28˚C. Do you recall what it was at Vernon?
 
It looks like you pulled about 90% of the maximum charge rate at your charger. I wasn’t even close. Temperatures in Vernon was 15C. Too confirm, I’m charging a Kona.
 
BC-Doc said:
I get the sense from the comments left on the apps that a small number of folks may be using the level 3 charger in Vernon as their primary charger (same people checking in over and over).
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I'm one of those frequent chargers. I charge in the evening and have have only come upon someone else using the charger once and have never returned to anyone waiting. I use it to get the usage numbers up in hopes that will encourage them to install another charger at that location (or another in town) for the reasons you mentioned in a previous thread. It's hard to consider a longer range trip when there is only one charger in most of the stops.
 
Canada Dan said:
I'm one of those frequent chargers. I charge in the evening and have have only come upon someone else using the charger once and have never returned to anyone waiting. I use it to get the usage numbers up in hopes that will encourage them to install another charger at that location (or another in town) for the reasons you mentioned in a previous thread. It's hard to consider a longer range trip when there is only one charger in most of the stops.
Click to expand...

Hopefully BC Hydro and the provincial government will step up and install more level 3 chargers quickly.

I’m not sure if it’s because of the long weekend, but every time I drove past the charger site this weekend it had an EV parked.

I’m with you— I would be leery about any long haul drips in my Kona given the risk of longish delays at the many single chargers.

Cheers,

BC Doc
 
Kitsilano said:
Thanks, XtsKonaTrooper. Looks like decline in charging rate is already very noticeable at about 15% battery SOC.
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My understanding of lithium batteries is that the charge rate is fastest in the middle of the charge process. It will go slower at first (especially at low SoC), speed up for the bulk of the recharge, then slow again at the end (especially at high SoC). Bigger batteries flatten the graph, and the battery cannot charge as fast when either hot or cold.

This article features the Ionic but not the Kona; I'd like to see that graph.

https://insideevs.com/news/338777/lets-look-at-fast-charging-curves-for-popular-electric-cars/
 
eastpole said:
My understanding of lithium batteries is that the charge rate is fastest in the middle of the charge process. It will go slower at first (especially at low SoC), speed up for the bulk of the recharge, then slow again at the end (especially at high SoC). Bigger batteries flatten the graph, and the battery cannot charge as fast when either hot or cold.

This article features the Ionic but not the Kona; I'd like to see that graph.

https://insideevs.com/news/338777/lets-look-at-fast-charging-curves-for-popular-electric-cars/
Click to expand...
Here it is (10% SOC to 95% SOC):
https://insideevsforum.com/communit...c-dc-fast-charge-speed.2925/page-2#post-61371
 
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