jjeff
Posts: 1462
Joined: Wed Jan 13, 2016 9:10 am
Delivery Date: 13 Jul 2014
Leaf Number: 422121
Location: MSP MN

Zencar 32a adjustable portable L2/L1 EVSE

Sat Jan 07, 2017 7:36 am

Well my Zencar portable L2/L1 EVSE came yesterday and so far I have to say I really like it. I ordered it directly from Zencar in China and paid via PayPal:
$300 for the EVSE with 3 user selectable currents I specified to 13a(for a 15a circuit) 20a(for short term 20a circuit charging) and 30a(max they'd program it for with the L6-30 end I wanted) note if you chose the 14-50 end they would have programmed it for the max this unit puts out, 32a. I could chose from 6A 8A 10A 13A 16A 20A 32A so if you wanted to charge continuously on a 20a circuit I'd suggest a 16a setting instead of 20a like I did. I also wanted an 8M J1772 cable(~25') 5m is standard and a 30" input cable(I believe this is also longer than the norm but it's what I wanted).
$64 for express shipping from China, they said 8 days but mine took 3(amazing!) via FedEx after some delay getting it built during the Christmas holidays.
$16.40 PayPal Fee......
A total of $380.40 and I'm quite happy. It comes with a 12 month warranty(which I'd have to ship back to China since I am the importer, so here's hoping I never have to use it) and it's built to CE and TUV certification although not UL listed(norm for most all Chinese EVSEs).

Impressions:
Really like the charging cord, very heavy duty and stayed flexible even in 0F temps, the input cable got very stiff as they basically all do and it has a nice molded plug, again I specified L6-30 which is a nice locking 30a hot/hot/ground plug. Input cable is 5.6mm(10 gauge) and J1772 cable is 6mm(slightly thicker than 10 gauge). The actual J1772 plug is very nice and heavy duty and mates very well with my Leafs charge port(not too tight, not too lose) it's white and has a very nice rubber tethered cap very similar to the OEM Leaf EVSE. I have no doubt it will last for years, unlike my Ebusbar EVSE that broke off within days of use.
I like it's top in bottom out cable design, lets it hang from the outlet and the charging cable comes out the bottom and runs to the car. It's also nice and compact and has a LCD display screen that says:
Output set current, Output draw current and Kw, voltage, temp(in C) and total Kwh and time you've been charging(haven't really played with this yet).

This was the first time I've ordered directly from China, unless you count Amazon where some items ship directly from China but I don't really count that as Amazon is who I'm ordering from and everything went quite well. There is a bit of a disconnect with the language barrier but my sales rep was quite easy to work with and made sure I got exactly what I wanted. Her name was Dream and her direct email is:
sales-1002@zencar.net
or you could always start out at sales@zencar.net as I did initially.

Selecting the current is a bit strange, when plugged in but not hooked to car you shake the EVSE quickly several times and it jumps to the next preset output current. In my case it came preset to 30a and while at first I was a bit hesitant about this method of changing the current I feel now it's just fine, avoids having external buttons which could potentially let in water. On it's totally weather proof, probably not submersible but I'd not hesitate(and will be) using it outdoors in possible rain.
Using it on my '13 Leaf I get 27.5a output current which should really be hooked to a 40a circuit for continuous use. If you only had a 30a circuit I guess you could specify maximum output current to be 24a.

While ordering directly from China might not be for everyone, for those more adventurous it can save you some good cash, at $380 I figure a similar US sold EVSE could easily cost $500 or more and probably wouldn't have some of the features this EVSE does, for sure not built exactly the way I wanted like this one was :)

Sellers website:
http://www.e-zencar.net/product/evse-32a/

Note you are ordering direct from the manufacturer so don't expect a retail type sale atmosphere and while I posted the prices I got, yours could vary, nothing is really written, you just tell them what you want and you get a quote. It sounds like you could save the PayPal fee by giving them your CC, it's just it wasn't very evident how you did that and I was willing to pay a little extra for that added insurance of using a company like PayPal. If anyone else goes this route I'd like to hear what you got and how you like it. Note the seller also sells a cheaper 16a non adjustable L1/L2 EVSE for around 1/2 the price, this thread talks about that one as ordered by another MNL member.
viewtopic.php?f=26&t=22692
2012 SL purchased used 2/'16
2013 S w/QC purchased new
Juicebox Premium 60a L1/L2 EVSE, Ebusbar 16a L1/L2 EVSE
'12 EVSEupgrade'd 20a L1/L2 EVSE, '13 EVSEupgrade'd adjustable 6-20a L2, 6-13a L1 EVSE
Zencar 13, 20, 30a L1/L2 portable EVSE
GE Durastation 30a

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DNAinaGoodWay
Posts: 2751
Joined: Mon Dec 17, 2012 1:43 am
Delivery Date: 03 Dec 2012
Leaf Number: 23156
Location: Central Massachusetts

Re: Zencar 32a adjustable portable L2/L1 EVSE

Sat Jan 07, 2017 8:56 am

I like the info screen.

IMG_6252.JPG


IMG_6251.JPG
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'12 SL last reading @ 2 yr, 22k, 260 GIDs, 62.35 Ahr

'15 SV w/QC, Mfd 5/14, Leased 8/14, 292 GIDs, 64.38 Ahr when new
@ 36 months, 34k, 270 GID, 57.49 Ahr

'17 Bolt LT



6.72 kW Array

GlennD
Forum Supporter
Posts: 1179
Joined: Sun Dec 18, 2011 7:14 pm
Delivery Date: 20 Jul 2013
Leaf Number: 410357
Location: Anaheim

Re: Zencar 32a adjustable portable L2/L1 EVSE

Sat Jan 07, 2017 1:30 pm

Make sure the unit has GFCI protection. I use a 10K resistor for 12Ma and a 5K resistor for 24 Ma. It should not trip at 12Ma but it should trip at 24Ma. The EVSE is supposed to have a 20Ma GFCI.

To test on 120V connect the resistor to L1 and ground while charging. For 240V either of the L's should work. It is much more simple to put it in charging mode with an emulator. I have found an 820 ohm resistor in series with an 1N4148 will force charging. The bar on the diode goes to ground. Chris Howell sells a proper emulator on his OpenEVSE site. 820 is the wrong value but it works fine. Chris's device is cheap shipped and it tests all possible states including the diode test.

The Lear that came with my B passes. So does the Juicebox and OpenEVSE.

Chris has tested several cheap China devices and he has found that they lack GFCI and the diode protection. Hopefully yours will pass. You can test the diode test by not using the diode.
2012 Cayenne Red SL traded for:
2013 Pearl White SL Premium
Traded for a Cirrus White 2014 Mercedes B (totaled)
2016 Urano Gray eGolf SEL w/ drive assist
Loved the VW but it sat too low for my old body
Back to a Cirrus White 2017 B250E

wwhitney
Posts: 666
Joined: Sat Jul 17, 2010 10:10 am
Delivery Date: 01 Apr 2011
Location: Berkeley, CA

Re: Zencar 32a adjustable portable L2/L1 EVSE

Sat Jan 07, 2017 2:13 pm

GlennD wrote:The EVSE is supposed to have a 20Ma GFCI.

I'm curious, do you have a reference for the 20ma specification? I know the NEC requires a "Personnel Protection System" to mitigate the risk of shock, and specifically avoids calling for a Class A GFCI (5ma trip). Does the UL standard for EVSEs call for a 20ma ground fault trip threshold?

Also BTW, the NEC requires the "Personnel Protection System" of a cord and plug connected EVSE to be within 12 inches of the plug. That is why the input cord on EVSEs is so short; technically an 18 inches input cord is an NEC violation.

Cheers, Wayne

GlennD
Forum Supporter
Posts: 1179
Joined: Sun Dec 18, 2011 7:14 pm
Delivery Date: 20 Jul 2013
Leaf Number: 410357
Location: Anaheim

Re: Zencar 32a adjustable portable L2/L1 EVSE

Sun Jan 08, 2017 10:52 am

I have no official documentation. Chris Howell discusses it on the OpenEVSE site. Most L1 EVSE's will work with a normal 5Ma GFCI outlet. 20Ma seems high to me but that is the spec.

Over the years Chris has put out a lot of good information. Most of it was moved to his site when Google shut down the original site. Just use the links on the top.

Obviously I like OpenEVSE but I have also made two JuiceBox's. OpenEVSE has evolved into a very safe product. It has always had the diode check built in. GFCI was added and Nick Sayer devised a way to test it so you know it is working. The advantage of OpenEVSE is that the code is public. Many have added features to it and the copyright page reflects that. Lincomatic (Sam) has integrated everything into the main code and you can comment out anything that you do not want.
2012 Cayenne Red SL traded for:
2013 Pearl White SL Premium
Traded for a Cirrus White 2014 Mercedes B (totaled)
2016 Urano Gray eGolf SEL w/ drive assist
Loved the VW but it sat too low for my old body
Back to a Cirrus White 2017 B250E

GlennD
Forum Supporter
Posts: 1179
Joined: Sun Dec 18, 2011 7:14 pm
Delivery Date: 20 Jul 2013
Leaf Number: 410357
Location: Anaheim

Re: Zencar 32a adjustable portable L2/L1 EVSE

Sun Jan 08, 2017 10:55 am

I realize a very short input cable is required. That is a feature I ignore since a longer cord makes more sense to me.
2012 Cayenne Red SL traded for:
2013 Pearl White SL Premium
Traded for a Cirrus White 2014 Mercedes B (totaled)
2016 Urano Gray eGolf SEL w/ drive assist
Loved the VW but it sat too low for my old body
Back to a Cirrus White 2017 B250E

User avatar
JimSouCal
Posts: 860
Joined: Tue Feb 08, 2011 12:54 pm

Re: Zencar 32a adjustable portable L2/L1 EVSE

Sun Jan 08, 2017 11:28 am

I am actually shopping around for a combo L1-L2 unit.
viewtopic.php?f=26&t=23202

Liked the WiFi of this juicebox model 40 amp model
https://emotorwerks.com/store-juicebox- ... 23?atid=18

The whole point of the EVSE is **safely** sending Line Voltage AC to the car. As others mention, as I understand it, the GFI would be important to ensure line voltage is being sent to electrify the frame of the car with AC, or to the person plugging it in in very wet conditions, etc.

UL listing isn't critical to me, but safety is, so I would be curious if the unit has the GFI safety trip...

jjeff
Posts: 1462
Joined: Wed Jan 13, 2016 9:10 am
Delivery Date: 13 Jul 2014
Leaf Number: 422121
Location: MSP MN

Re: Zencar 32a adjustable portable L2/L1 EVSE

Sun Jan 08, 2017 11:41 am

JimSouCal wrote:I am actually shopping around for a combo L1-L2 unit. ....
UL listing isn't critical to me, but safety is, so I would be curious if the unit has the GFI safety trip...

If it's easy enough I can test mine, I probably have several different values of resistors around but no real modern diodes. I also see no easy way of running a resistor from L1 or L2 to ground(after the EVSE) while the EVSE is charging. I also have no break out type box for the J1772 connector and have little interest in purchasing something new, but if I can test it with what I've got, no problem :)
2012 SL purchased used 2/'16
2013 S w/QC purchased new
Juicebox Premium 60a L1/L2 EVSE, Ebusbar 16a L1/L2 EVSE
'12 EVSEupgrade'd 20a L1/L2 EVSE, '13 EVSEupgrade'd adjustable 6-20a L2, 6-13a L1 EVSE
Zencar 13, 20, 30a L1/L2 portable EVSE
GE Durastation 30a

User avatar
JimSouCal
Posts: 860
Joined: Tue Feb 08, 2011 12:54 pm

Re: Zencar 32a adjustable portable L2/L1 EVSE

Sun Jan 08, 2017 1:31 pm

jjeff wrote:
JimSouCal wrote:I am actually shopping around for a combo L1-L2 unit. ....
UL listing isn't critical to me, but safety is, so I would be curious if the unit has the GFI safety trip...

If it's easy enough I can test mine, I probably have several different values of resistors around but no real modern diodes. I also see no easy way of running a resistor from L1 or L2 to ground(after the EVSE) while the EVSE is charging. I also have no break out type box for the J1772 connector and have little interest in purchasing something new, but if I can test it with what I've got, no problem :)
Maybe you can just ask your sales rep and see what they say... They could also add such a description on their web site... I also have done business with Chinese tech companies...mostly successful... Appreciate you sharing your find regardless. That said, you seem like the kind of fellow who'd want to know the safety implementation as well....

jjeff
Posts: 1462
Joined: Wed Jan 13, 2016 9:10 am
Delivery Date: 13 Jul 2014
Leaf Number: 422121
Location: MSP MN

Re: Zencar 32a adjustable portable L2/L1 EVSE

Sun Jan 08, 2017 2:52 pm

JimSouCal wrote:
jjeff wrote:
JimSouCal wrote:I am actually shopping around for a combo L1-L2 unit. ....
UL listing isn't critical to me, but safety is, so I would be curious if the unit has the GFI safety trip...

If it's easy enough I can test mine, I probably have several different values of resistors around but no real modern diodes. I also see no easy way of running a resistor from L1 or L2 to ground(after the EVSE) while the EVSE is charging. I also have no break out type box for the J1772 connector and have little interest in purchasing something new, but if I can test it with what I've got, no problem :)
Maybe you can just ask your sales rep and see what they say... They could also add such a description on their web site... I also have done business with Chinese tech companies...mostly successful... Appreciate you sharing your find regardless. That said, you seem like the kind of fellow who'd want to know the safety implementation as well....

I'll email them tonight and see what they have to say. For reference I'll ask them "Does this EVSE have GFCI and Diode protection?" does that sound about right? I agree, it would be nice to know.....

Interesting, just looking at their website now and I see something I hadn't noticed before, it says:
"All of our products come with CE, TUV and UL certification"
The UL thing is new to me, I don't remember seeing that before, I'll have to look again at the EVSE(which isn't available right now) I sure don't remember seeing a UL sticker on it :? In the past I remember other companies saying their EVSEs are made to UL specs but they haven't actually paid the fee or went through the paperwork to actually be UL listed......interesting.

Update: I see a large CE on the EVSE but no UL listed anywhere.....
2012 SL purchased used 2/'16
2013 S w/QC purchased new
Juicebox Premium 60a L1/L2 EVSE, Ebusbar 16a L1/L2 EVSE
'12 EVSEupgrade'd 20a L1/L2 EVSE, '13 EVSEupgrade'd adjustable 6-20a L2, 6-13a L1 EVSE
Zencar 13, 20, 30a L1/L2 portable EVSE
GE Durastation 30a

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