JJMcCoySeattle
Posts: 13
Joined: Tue Aug 28, 2012 11:42 am
Delivery Date: 28 Aug 2012

Is my Blink Home EVSE safe for 6.6 kW charging?

Sat Aug 09, 2014 3:06 pm

Hi All

I just turned in my 2012 Leaf, which charged for two years with no problems at 3.3 kW (15A) on the Blink home EVSE that I got through the EV Project.

The new 2015 Leaf, however, has 6.6 kW Level 2 charging (i.e. 30A).

I've heard that Blink has had issues with their plugs overheating at 30A.

And I just plugged in for a few minutes at 6.6 kW. The port on the Leaf definitely feels warm. I never checked to see if it felt warm before.

Should I be worried? Should I throw out the Blink unit and upgrade? Will I burn my house down / melt my charge port?

John

ahagge
Posts: 298
Joined: Mon Aug 30, 2010 8:38 am
Delivery Date: 02 Jul 2011
Leaf Number: 5175
Location: Northridge, CA

Re: Is my Blink Home EVSE safe for 6.6 kW charging?

Sat Aug 09, 2014 4:26 pm

I am neither a lawyer nor an engineer, so don't take this as gospel, but I think the general consensus of opinion on this website is that the Blink unit itself is OK to charge at 6.6 kW (IF you have it connected to a 40A, 240V circuit), but that the J1772A cord may not be up to the task. I believe that one owner (Tony Williams, IIRC) partially melted the J1772A socket on his vehicle (a new RAV-4 EV) with a Blink with the stock cord.

Most people are recommending that if you have the electrical skill, you should replace the cord with a 40A-rated cable from a different manufacturer, such as this one or this one that forum member Chris Howell is selling for his OpenEVSE unit. Oh, and check the tightness of all of the high-voltage connections.

If you aren't comfortable replacing the cable yourself, your options are:
  • Pay an electrician to replace it
  • Try to open up the existing cable J1772 connector and beef up the connections (there's a post about that somewhere on this forum), or
  • Sell your Blink to someone on the forum and buy a different unit
You can check out differing opinions here.

Ultimately, its Caveat Emptor at this point...
Ocean Blue SL-e
Per LEAF Spy as of 06/26/18: 11 bars, 222 GIDs, 53.4 AHr on new (04/30/15) Lizard battery (1st bar lost 12/22/17)
Orig. battery lost 4th bar at 177 GIDs, 43.19 AHr, 44.74 Hx, 65% SOH after 45 months

pchilds
Posts: 418
Joined: Sun Jun 17, 2012 12:14 am
Delivery Date: 31 Jul 2011
Leaf Number: 006141
Location: SoCal

Re: Is my Blink Home EVSE safe for 6.6 kW charging?

Sat Aug 09, 2014 4:30 pm

JJMcCoySeattle wrote:Hi All

I just turned in my 2012 Leaf, which charged for two years with no problems at 3.3 kW (15A) on the Blink home EVSE that I got through the EV Project.

The new 2015 Leaf, however, has 6.6 kW Level 2 charging (i.e. 30A).

I've heard that Blink has had issues with their plugs overheating at 30A.

And I just plugged in for a few minutes at 6.6 kW. The port on the Leaf definitely feels warm. I never checked to see if it felt warm before.

Should I be worried? Should I throw out the Blink unit and upgrade? Will I burn my house down / melt my charge port?

John
GlennD wrote up how to fix the Blink cable, in this thread.

http://www.mynissanleaf.com/viewtopic.php?f=43&t=16876

It is fairly easy, if you can solder.
2011 LEAF, gone,
2012 RAV4 EV,
2015 Model S 85D,
Solar PV 5.25 kW system.

Kelangst
Posts: 72
Joined: Sun Jan 09, 2011 10:46 am

Re: Is my Blink Home EVSE safe for 6.6 kW charging?

Tue Aug 19, 2014 3:26 pm

I wish I had been paying better attention here lately because yes my J1772 Blink connector melted and damaged my Leaf. Has been at the Dealer over 3 weeks now. Even though Blink admitted it is their issue and 2 people, including their CTO, have admitted this is something that is due to the bad cable, well getting approval for the repair is taking a very long time. I don't want to pay for the repair at the dealer and ask for reimbursement because they may decide they would not then need to cover it.

Is weird that I charged without issue for months and then boom.

Check your cables people. I was afraid to replace mine myself and just kept putting it off assuming that they would send a recall or a notice to me. Poor poor choice on my part. If you have an original Blink unit, please do not assume you are ok just because nothing has gone wrong before now with the 6.6 charging. Fix that cable.

https://www.flickr.com/photos/clanmiller/14787876670

GlennD
Posts: 1493
Joined: Sun Dec 18, 2011 7:14 pm
Delivery Date: 20 May 2013
Leaf Number: 410357
Location: Anaheim

Re: Is my Blink Home EVSE safe for 6.6 kW charging?

Wed Aug 20, 2014 1:03 pm

I wish you luck. The company that purchased Blink only purchased their commercial EVSEs. Home owners are left drifting without support.
:
2013 Pearl White SL Premium
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Loved the VW but it sat too low for my old body
Back to a Cirrus White 2017 B250e
White Ioniq limited.It sits just fine

DarkStar
Posts: 2066
Joined: Sat Jul 17, 2010 10:06 am
Delivery Date: 25 Mar 2011
Leaf Number: 568
Location: Hillsboro, Oregon, USA
Contact: Website

Re: Is my Blink Home EVSE safe for 6.6 kW charging?

Wed Aug 20, 2014 1:33 pm

Kelangst wrote:Even though Blink admitted it is their issue and 2 people, including their CTO, have admitted this is something that is due to the bad cable, well getting approval for the repair is taking a very long time. I don't want to pay for the repair at the dealer and ask for reimbursement because they may decide they would not then need to cover it.
Pay for the replacement receptacle and take Blink to small-claims. Just because you chose to pay for the repair out-of-pocket, any legal right you have against Blink shouldn't be diminished.
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Reserved: 04/20/10 | Ordered: 10/01/10 | EV Project Blink Installed: 03/22/11 | Delivered: 03/25/11 | VIN: 568

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rdhauser
Gold Member
Posts: 126
Joined: Fri Jan 21, 2011 9:30 pm
Delivery Date: 05 Jul 2011
Leaf Number: 5287
Location: Olympia, Washington

Re: Is my Blink Home EVSE safe for 6.6 kW charging?

Wed Aug 20, 2014 4:38 pm

Not directly on topic, but I want to add that I received an email from BLINK last week. Don’t remember the exact wording, but what I remember is that because of overheating in some situations, they have done a software reset (via internet) on all BLINK units to limit them to 15 amps. Anyone else get that memo? I ask because I’m wondering if they did it because of the problem you’re talking about here.
Dick
2011 Glacier Pearl SLe 005287 (Gone to the Kids 5/18)
2018 White SV with Cold Weather Option 3/16/18

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TonyWilliams
Posts: 10091
Joined: Sat Feb 19, 2011 1:48 am
Location: San Diego
Contact: Website

Re: Is my Blink Home EVSE safe for 6.6 kW charging?

Thu Aug 21, 2014 12:33 am

ahagge wrote: I believe that one owner (Tony Williams, IIRC) partially melted the J1772A socket on his vehicle (a new RAV-4 EV) with a Blink with the stock cord.

Most people are recommending that if you have the electrical skill, you should replace the cord with a 40A-rated cable from a different manufacturer, such as this one that forum member Chris Howell is selling for his OpenEVSE unit.
Yes, that was me with the melted Yazaki J1772 inlet on my 2012 Rav4 EV.

Its also myself and my brother who makes the 40 amp J1772 cable for Chris.

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DaveEV
Posts: 6246
Joined: Fri Apr 23, 2010 3:51 pm
Location: San Diego

Re: Is my Blink Home EVSE safe for 6.6 kW charging?

Thu Aug 21, 2014 12:39 am

rdhauser wrote:Not directly on topic, but I want to add that I received an email from BLINK last week. Don’t remember the exact wording, but what I remember is that because of overheating in some situations, they have done a software reset (via internet) on all BLINK units to limit them to 15 amps. Anyone else get that memo? I ask because I’m wondering if they did it because of the problem you’re talking about here.
Carcharging/Blink Reduces resedential EVSE's to 24Amp.

MikeD
Posts: 704
Joined: Thu Jun 24, 2010 6:14 am
Delivery Date: 12 May 2011
Leaf Number: 592

Re: Is my Blink Home EVSE safe for 6.6 kW charging?

Thu Aug 21, 2014 6:05 am

JJMcCoySeattle: Why not post a carefully worded poll of Blink users of their experience with it, including entries for Leaf MY, charger power, and length of time of experience? You might also call Blink customer support and find out what they have to say about residential Blink problems. (Realize they may not be unbiased, especially if they are trying to sell you another EVSE to replace your Blink.)

I have read that some (models unstated) EVSEs apparently do not use silver plated coupling pins (like nickel plated) and I wonder if that could possibly be an issue as well.

It seems to me that any mechanical electric coupler is subject to a number of contributing degrading factors over time that can cause them to eventually fail, and it would be best if EVs monitored their J1772 ports for excessive temperature (and perhaps reduced power draw when appropriate).

In the meantime might I suggest considering using your home EVSE set to operate at only 16a 240v, if that is sufficient most of the time (i.e. why use a higher power rate than you normally need)? If one has two (or more) EVs, that makes the most amount of sense to use to be more sustainable (and probably avoid expensive service upgrades, etc).

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