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Discussion Starter #1
I’m following a thread on the Bolt sub-reddit where the OP thinks he may have encountered DCFC units that stopped charging at 80% SOC. Independent of whether he did or didn’t, can a Bolt communicate its SOC to a DCFC unit?
 

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Yes, the DCFC has real time status of your charge level.
 

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I’m following a thread on the Bolt sub-reddit where the OP thinks he may have encountered DCFC units that stopped charging at 80% SOC. Independent of whether he did or didn’t, can a Bolt communicate its SOC to a DCFC unit?
Do you have a link to the discussion? Is it possible they have the Charge Limit set to 80%? For the newer Bolt EVs, that setting works for both AC and DC charging.
 

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That's interesting, I think either Tesla or EA talked about cutting you off at 80% because the last 20% takes a very long time... probably should move over to a L2 EVSE of a medium DC charger (like at Harley Davidson).
 

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That's interesting, I think either Tesla or EA talked about cutting you off at 80% because the last 20% takes a very long time... probably should move over to a L2 EVSE of a medium DC charger (like at Harley Davidson).
EA isn't cutting people off that I know of, but they were hammering my app with dozens of messages when I started to charge past 80%. I sent a complaint, and it hasn't happened since.
 

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Maybe a coincidence? I know some chargers boot you at the 30-minute mark or some other designated time of charge.
 

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There is a new service in Canada that cuts you off at 95% called IVY. Called and complained about it but they claim that it is not their issue when it is since every other DCFC I use goes all the way to 100%.
 

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Perhaps I'm missing something. Under most circumstances, why would anyone need to charge all the way to 100% at a public charging station? If a person has that much time to kill, they just might end up starting an online conversation about how inconvenienced they are by not being able to take an extra hour or so out of their life in order to get that last 20% of charge into their battery pack.
 

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Discussion Starter #13
Perhaps I'm missing something. Under most circumstances, why would anyone need to charge all the way to 100% at a public charging station? If a person has that much time to kill, they just might end up starting an online conversation about how inconvenienced they are by not being able to take an extra hour or so out of their life in order to get that last 20% of charge into their battery pack.
Given the relative infancy of the US charging network, it’s pretty easy to envision needing more than 80% to make it to the next station.
 

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Given the relative infancy of the US charging network, it’s pretty easy to envision needing more than 80% to make it to the next station.
For me, it's a combination of both current EV ranges as well as the state of the infrastructure. If 80% battery represented 300 to 400 miles of range, the current public infrastructure coverage would cover 99% of use cases in the Lower 48. Of course, the combination of both more robust infrastructure and longer ranges would be the best solution, but I really don't think we should be pursuing only the expanding infrastructure route without also addressing both EV range and EV range between reasonable charging sessions.
 

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Discussion Starter #15
For me, it's a combination of both current EV ranges as well as the state of the infrastructure. If 80% battery represented 300 to 400 miles of range, the current public infrastructure coverage would cover 99% of use cases in the Lower 48. Of course, the combination of both more robust infrastructure and longer ranges would be the best solution, but I really don't think we should be pursuing only the expanding infrastructure route without also addressing both EV range and EV range between reasonable charging sessions.
I agree we need both, but in a lot of my neck of the woods, DCFC simply doesn't exist.
 

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Here's my situation: While I live in the country, there are public charging stations everywhere, but I mostly charge at home. When I DO need a charger to get me to 100% is when we want to go to Modoc county. We go from Placerville to Reno on i80. There are are 2 DCFCs in Reno, well off the interstate. Both are EVgo. Our destination from Reno is 208 miles away, with zero electrons available in between, so I need a full charge. Fortunately, the charger I use is a 3 minute walk from the restaurant, but it's kind of a PITA to have to get up from my meal and traipse back to the car to restart the dang session so I can get the full charge I need to make my destination. It would be nice if they gave you an option for an 80% charge , or a 100% charge.
 

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Here's my situation: While I live in the country, there are public charging stations everywhere, but I mostly charge at home. When I DO need a charger to get me to 100% is when we want to go to Modoc county. We go from Placerville to Reno on i80. There are are 2 DCFCs in Reno, well off the interstate. Both are EVgo. Our destination from Reno is 208 miles away, with zero electrons available in between, so I need a full charge. Fortunately, the charger I use is a 3 minute walk from the restaurant, but it's kind of a PITA to have to get up from my meal and traipse back to the car to restart the dang session so I can get the full charge I need to make my destination. It would be nice if they gave you an option for an 80% charge , or a 100% charge.
There is an Electrify America charger in Sparks, now, too. Actually, it's right next to a few places to eat (well, maybe not right now). Also, you do have an option for charging on the way in Susanville, but only L2 AC. A lunch break at the casino or Pizza Factory (if you have the Tesla Destination charger adapter) will add another 20 to 30 miles.

I'm assuming you can charge up in Modoc because that's the real dead area. Even Tesla owners are relegated to L2 AC because there are no DC fast chargers in that region.
 

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Perhaps I'm missing something. Under most circumstances, why would anyone need to charge all the way to 100% at a public charging station?
In my case it's often not about need but about convenience. I find something to do while I am charging. If I am not ready to go yet (which is often the case when I travel - say I'm still enjoying my meal), I don't want to have to run to the charger to unplug. EA adds Idle fees when you are connected but not charging. Ironically those fees are $0.40/minute while charging (even if at less than 10kW) is only $0.15/minute for my Bolt. So if it keeps going above 80%, it may be more expensive per mile added, but it is cheaper to get some electricity than to be hit with Idle fees.
 

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Yeah, real electron desert up there in Modoc. But our cousins installed a couple Tesla Destination chargers at their B&B, and I used his welder socket with an adapter and the OEM EVSE. Still, it took two whole days for the car to charge up!

We looked at the Susanville route, but L2 only.... Every city worth the moniker (village or town could be exempt) should have at least one DCFC. Even if no one in town owns an EV.
 
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