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dgpcolorado
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Re: 100% trickle charge gets me 67 miles. Day 3

Tue Sep 11, 2012 9:01 am

Mauileaf wrote:The 14-50 to L6-20 adapter is all I need after an upgrade?
Yes, if your dryer outlet is a NEMA 14-50 or 14-30 (it might be something else). Here's an image of receptacle types:
NEMA receptacle diagram
Technical stuff: The adapter works with both 14-50 and 14-30 because the neutral pin is cut off the plug. The L6-20 end needs only three wires: Hot, Hot, Ground. Neutral is used for dryers and stoves so that they can have 120V clocks and controllers. It is not used for a 240V EVSE.

Also, as planet4ever said above, it is crucial that the outlet you use for charging the LEAF be the only one on the circuit. Is it?
I would get a separate meter for fun?
I like having a meter to track my electricity usage from the wall so I can track the exact cost of fueling my car. But I assume that you probably wouldn't want to install something like that in a rental house. If you do, DaveinOlyWA explains how here: Refurbished utility meter installation

I have two portable EVSE units. The one modified for 240V lives in my garage except in the rare instances I need to use a 240V plug to charge down in town. The 120 V one lives in my car since I live in a remote area with no public charge stations whatsoever; it is my emergency backup. But Nissan raised the price of their portable Panasonic unit so buying a second EVSE is now quite expensive. If you can get by without carrying one in the car I'd just leave it in the garage.
Last edited by dgpcolorado on Tue Sep 11, 2012 9:23 am, edited 2 times in total.
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Mauileaf
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Re: 100% trickle charge gets me 67 miles. Day 3

Tue Sep 11, 2012 9:06 am

I'll get that 240v tested to make sure it's got power first. I would consider asking the landlord (who's also the one who built this house) about putting in a third (do i need to?) with its own breaker just in case (we do cloth diapers and using the dryer every night it seems!)

FREE Blink charger? I've missed something along my research.

I'm no electrician but what's the deal with the L6-20 over the dryer issue it seems I might introduce?

Mauileaf
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Re: 100% trickle charge gets me 67 miles. Day 3

Tue Sep 11, 2012 9:25 am

Image

Image

I use this now...

Image


Should I use this instead?
Image

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dgpcolorado
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Re: 100% trickle charge gets me 67 miles. Day 3

Tue Sep 11, 2012 9:43 am

^I'm not an electrician but it looks to me like your second outlet is a 14-50 and does have its own circuit and breaker ("Welding"). If you have a voltmeter you can check to see that it is off when you flip that breaker. Same with the dryer outlet.

If the outlet works, it appears that you are good to go with an upgraded EVSE and 14-50 to L6-20 adapter for Level 2 charging.

There are some EEs here who have more experience with such things and who are better qualified to say. Or ask any local electrician.

As for your current 120V charging, you should be fine with the outlet you are currently using. It isn't necessary to use a GFI outlet because the EVSE acts as a really big GFI unit. In case of a ground fault it would immediately cut the flow of power to the J1772 plug. Try to be sure that the 120V outlet you use doesn't have anything else drawing current on the same circuit while you are charging. The EVSE draws 12 Amps at 120 Volts and that should be the maximum used on a standard 15 Amp circuit.
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davewill
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Re: 100% trickle charge gets me 67 miles. Day 3

Tue Sep 11, 2012 10:38 am

dgpcolorado wrote:^I'm not an electrician but it looks to me like your second outlet is a 14-50 and does have its own circuit and breaker ("Welding"). If you have a voltmeter you can check to see that it is off when you flip that breaker. Same with the dryer outlet.

If the outlet works, it appears that you are good to go with an upgraded EVSE and 14-50 to L6-20 adapter for Level 2 charging. ...
I'm not an electrician either, but I find it curious that the circuit is labeled "50a", and seems to have a 50a receptacle, but the breakers themselves are only 20a. I surmise that someone decided to downgrade it for some reason. They really should have changed out the receptacle to a 20a, but didn't. It should work OK for the upgraded EVSE, as dpgcolorado noted, although the possibility exists that you could install a 40a or 50a breaker and plug a higher capacity EVSE into that circuit. I wouldn't do it without things being checked out by qualified personnel though, as there may have been a good reason to downgrade the circuit. Besides, you won't really see any advantage with your current LEAF as it can't use the extra capacity. It would leave your portable EVSE available for carrying around, however.
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DaveinOlyWA
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Re: 100% trickle charge gets me 67 miles. Day 3

Tue Sep 11, 2012 11:10 am

davewill wrote:
dgpcolorado wrote:^I'm not an electrician but it looks to me like your second outlet is a 14-50 and does have its own circuit and breaker ("Welding"). If you have a voltmeter you can check to see that it is off when you flip that breaker. Same with the dryer outlet.

If the outlet works, it appears that you are good to go with an upgraded EVSE and 14-50 to L6-20 adapter for Level 2 charging. ...
I'm not an electrician either, but I find it curious that the circuit is labeled "50a", and seems to have a 50a receptacle, but the breakers themselves are only 20a. I surmise that someone decided to downgrade it for some reason. They really should have changed out the receptacle to a 20a, but didn't. It should work OK for the upgraded EVSE, as dpgcolorado noted, although the possibility exists that you could install a 40a or 50a breaker and plug a higher capacity EVSE into that circuit. I wouldn't do it without things being checked out by qualified personnel though, as there may have been a good reason to downgrade the circuit. Besides, you won't really see any advantage with your current LEAF as it can't use the extra capacity. It would leave your portable EVSE available for carrying around, however.

umm, im sorry but is that supposed to be a picture of a "working" plug?
2011 SL; 44,598 mi, 87% SOH. 2013 S; 44,840 mi, 91% SOH. 2016 S30; 29,413 mi, 99% SOH. 2018 S; 25,185 mi, SOH 92.23%. 2019 S Plus; 412 mi, 99.72% SOH
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Mauileaf
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Re: 100% trickle charge gets me 67 miles. Day 3

Tue Sep 11, 2012 4:26 pm

I don't understand your question.

DaveinOlyWA
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Re: 100% trickle charge gets me 67 miles. Day 3

Tue Sep 11, 2012 4:52 pm

Mauileaf wrote:I don't understand your question.
It could be my monitor maybe but does not look hooked up. Do u plug anything into it now?
2011 SL; 44,598 mi, 87% SOH. 2013 S; 44,840 mi, 91% SOH. 2016 S30; 29,413 mi, 99% SOH. 2018 S; 25,185 mi, SOH 92.23%. 2019 S Plus; 412 mi, 99.72% SOH
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Mauileaf
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Re: 100% trickle charge gets me 67 miles. Day 3

Tue Sep 11, 2012 7:14 pm

I've use most of the outlets and all seem to be working. I need to pick up a voltmeter to test that 220 which has its own breaker.

DaveinOlyWA
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Re: 100% trickle charge gets me 67 miles. Day 3

Tue Sep 11, 2012 7:54 pm

Mauileaf wrote:I don't understand your question.

oh crap! i didnt see the post above about the 20/50 amp breaker thing.

ya, that is weird. i would take that plug out and put in the 20 amp plug (cheaper) and see what gauge wire you got running to it
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