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 Post subject: Re: Charging fault, charging port locked and won't let go
PostPosted: Thu Aug 09, 2018 11:44 am 
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Joined: Fri Mar 27, 2015 4:13 pm
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Location: Los Altos, CA
This video was posted to the VW e-Golf Facebook Group. If you're not a member, you may not be able to see it. It is a "Closed Group" but that means that you have to join, not that it's defunct.

https://www.facebook.com/snooproberob/v ... 955499216/

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 Post subject: Re: Charging fault, charging port locked and won't let go
PostPosted: Thu Aug 09, 2018 2:12 pm 
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Joined: Fri Jan 23, 2015 1:18 pm
Posts: 343
I don't have a Facebook account, and will not apply for one, so I can't see the video. What does the video show?

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 Post subject: Re: Charging fault, charging port locked and won't let go
PostPosted: Thu Aug 09, 2018 3:53 pm 
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Joined: Fri Mar 27, 2015 4:13 pm
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Location: Los Altos, CA
f1geek wrote:
I don't have a Facebook account, and will not apply for one, so I can't see the video. What does the video show?

It shows an e-Golf that arcs when a ChargePoint Home EVSE is actively charging the car. The charge port lock was not engaged and the button was pressed to release the J1772 handle and the handle was pulled out. Big sparks.

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2015 e-Golf LE (returned) | 2018 Tesla Model 3 LR | 2012 RAV4 EV Shoreline w/JdeMO | Leviton EVB40 & Jesla Home Charging | 4.32kW Motech/Enphase PV + 2x Powerwall 2 AC


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 Post subject: Re: Charging fault, charging port locked and won't let go
PostPosted: Thu Aug 09, 2018 5:01 pm 
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Joined: Fri Jan 23, 2015 1:18 pm
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I haven't seen the video, of course, but I called Chargepoint to ask about whether this is possible with a properly functioning Chargepoint home station (with the e-Golf) and I was told that a properly working station will not allow arcing per the J1772 safety protocols. So what you are seeing in this video is probably a damaged plug, wiring or station. Assuming all the parts of the station, cable and plug are in good working order, then there will be no arcing even if the plug is removed mid-charging.

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 Post subject: Re: Charging fault, charging port locked and won't let go
PostPosted: Fri Aug 10, 2018 11:33 pm 
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Joined: Fri Mar 27, 2015 4:13 pm
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I don't remember the particulars, but I believe his on-board charger was replaced after this. However, he did say that ChargePoint was able to reproduce some of his problems.

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 Post subject: Re: Charging fault, charging port locked and won't let go
PostPosted: Sat Aug 11, 2018 9:01 am 
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Joined: Mon Oct 05, 2015 2:01 pm
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miimura wrote:
I don't remember the particulars, but I believe his on-board charger was replaced after this. However, he did say that ChargePoint was able to reproduce some of his problems.


I can tell you for certain that my e-motorwerks unit will do the same arcing, under certain circumstances. Not only that, but you can smell the ionized air from it if you sniff the plug in on the handle. I always push the unlock on the keyfob now, then wait 1/2 to 1 second before removing the handle, on my 2015 SEL. Arcing like that is bad for everything at the port and in the handle. Use the unlock feature on the keyfob, always, to stop the recharging process.

Rarely for me is this a problem, since I usually do a full recharge right before I leave. It's topped off for 10 to 30 minutes before I unplug and drive off. I will usually get 3 to 4 trips out of the car at 27 miles each, before recharging, less in winter time.

I am not noticing much battery degradation or reduction in range this summer. I have also completely stayed away from any fast recharging for almost a year now. Not sure if it's making a difference, since before that, I so rarely recharged DCFC. A good 240V home supply at 30 amps is plenty good and fast enough for me, and convenient.

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