jjeff
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Re: Need portable charger adapter advise.

Wed Jul 22, 2020 4:44 pm

pmatt wrote:
Wed Jul 22, 2020 12:44 pm
I am trying to post a picture of the circuit breaker...I am not an electrician so I am clueless...but it's a double breaker, each says 25 on it. So is that 25 or 50?

[img]https://drive.google.com/file/d/1zvr1e4 ... haring/img]
A 6-15 looks similar size to a regular 120v US outlet, a 6-30 is much bigger, looks like a range type plug.
A 25a breaker is very odd(I've never seen one) but if 25a is stamped on the end of the breaker toggle it must mean 25a 240v. As others have said in your case you should really verify the wiring size. A 6-30 outlet would indicate a 30a circuit but it's possible as they don't make 25a outlets they used a 30a outlet as using a 20a outlet wouldn't handle a 25a load.
I'm guessing you would be good with a 20a continuous load and EVSEs do come with 20a settings but they aren't too common, the 240v OEM Leaf EVSE would NOT work on a 20/25a circuit, well unless you hook the EVSE up to a pre '13 Leaf in which the Leaf itself limits 240v charging to 16a, your Leaf will max out at 27.5a, way too much for even a 25a circuit.
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cwerdna
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Re: Need portable charger adapter advise.

Wed Jul 22, 2020 5:13 pm

I seem to not have access to that image posted on Google Drive. Try uploading it to https://imgur.com/.

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LeftieBiker
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Re: Need portable charger adapter advise.

Wed Jul 22, 2020 5:57 pm

Clipper Creek makes good, basic charging stations, and they should still have a 20A one. They use the breaker size required as the model number rather than the amperage rating, so it would be something like 'HCS-25' and would provide 20 amps. I think that's what I actually have but never installed. Anyway, get it inspected by an electrician, and if the wiring isn't too old and/or deteriorated, get a charging station with a 20 amp or less rating. In the unlikely event that you have larger wiring than is required for a 25A breaker, find out what amperage and breaker are appropriate from the electrician.
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Re: Need portable charger adapter advise.

Thu Jul 23, 2020 6:11 am

Oilpan4 wrote:
Wed Jul 22, 2020 3:22 pm
Have it checked by an electrician.
+1. This is the most important thing.

(there is too much guessing in this thread)
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pmatt
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Re: Need portable charger adapter advise.

Thu Jul 23, 2020 8:52 am

Thanks everyone. I did talk to the Nissan Leaf help desk...I explained what I had and they said that an adapter is all I need because their charging box/cable will only draw what the circuit allows...they said if it's a 25amp breaker, it will take longer to charge then a 50amp but it will still work.

However, I think checking with an electrician would be better...plus, if they can change it to a 50amp that would be better.

Any other advise is appreciated.

Matt

smkettner
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Re: Need portable charger adapter advise.

Thu Jul 23, 2020 9:28 am

pmatt wrote:
Thu Jul 23, 2020 8:52 am
Thanks everyone. I did talk to the Nissan Leaf help desk...I explained what I had and they said that an adapter is all I need because their charging box/cable will only draw what the circuit allows...they said if it's a 25amp breaker, it will take longer to charge then a 50amp but it will still work.

However, I think checking with an electrician would be better...plus, if they can change it to a 50amp that would be better.

Any other advise is appreciated.

Matt
I believe the Nissan help desk is flat wrong. If in doubt get a 16 amp EVSE and get on with driving. You will still be full charge by morning. I recommend Clipper Creek.
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GerryAZ
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Re: Need portable charger adapter advise.

Thu Jul 23, 2020 9:44 am

pmatt wrote:
Thu Jul 23, 2020 8:52 am
Thanks everyone. I did talk to the Nissan Leaf help desk...I explained what I had and they said that an adapter is all I need because their charging box/cable will only draw what the circuit allows...they said if it's a 25amp breaker, it will take longer to charge then a 50amp but it will still work.

However, I think checking with an electrician would be better...plus, if they can change it to a 50amp that would be better.

Any other advise is appreciated.

Matt
Unless the Nissan dual-voltage portable EVSE (electric vehicle supply equipment) is different than the one that came with my 2019, it will allow the car to draw up to 30 amperes at 240 volts (which exceeds your circuit capacity) or 12 amperes at 120 volts. The actual current draw by the onboard charger in the car is determined by various control modules in the car including the LBC (lithium battery controller), VCM (vehicle control module) and the charger itself. Unless the control signal from the EVSE indicates a lower limit, the charger will draw between 26 and 28 amperes from a 240-volt circuit (within this range, current is lower if voltage is high; current is higher if voltage is low). Therefore, I believe the information you received from the LEAF help line was incorrect or misleading. The car will charge fine from your circuit if you obtain an EVSE that provides a control signal which does not exceed 80% of the circuit rating (assuming the wiring is in good condition). Again, have the circuit checked by an electrician who is familiar with requirements for EVSE installations. I also recommend Clipper Creek units of appropriate ratings.
Gerry
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alozzy
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Re: Need portable charger adapter advise.

Thu Jul 23, 2020 9:58 am

There are several portable EVSEs that let you select a max amperage draw, making them more flexible as you can typically charge at either 120V or 240V, with several amperage steps to fit most use cases.

For example, my portable EVSE is used mostly at home on a 14-30R supply and I charge at 240V/24A. But, when camping, I can use it with a 14-50R supply and bump up to the 32A setting, or with an adapter I can charge on a TT30 (120V) at 24A.

If nothing better is available, it will also charge with a standard 120V receptacle in which case I set it to 12A.
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Oilpan4
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Re: Need portable charger adapter advise.

Thu Jul 23, 2020 11:16 am

The electrician likely worth change the breaker to a 50 amp with out ripping out the old wire and replacing it.
An electrician can inspect the wire on both ends, make sure it only goes one place and install an appropriate breaker and receptacle.

That circuit may only be good for 16 amps, which is all you really need.

goldbrick
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Re: Need portable charger adapter advise.

Thu Jul 23, 2020 1:49 pm

pmatt wrote:
Thu Jul 23, 2020 8:52 am
... their charging box/cable will only draw what the circuit allows...
That's tremendously bad advice. The only way this would work is if the breaker tripped because it was carrying too much current. There is absolutely nothing in the circuit to limit the current except the circuit breaker, or the wire if it melts or catches on fire, etc.

The breaker is sized to protect the wire. You can't just put any breaker on any wire, the wire size (and receptacle) dictate how much current the circuit can handle. The breaker is there as a safety device to prevent something (like your car) from trying to pull too much current through the wire. Too much current through the wire will cause it to get hot and can cause a fire or become a shock hazard.

Get an electrician to take a look at the circuit and ask him/her if they are familiar with EVSE requirements. Depending on where you live not all of them may be up to speed on the requirements.

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