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EVDRIVER
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Re: 2018 Leaf - Charger throws fault on 240V

Sat Jun 09, 2018 7:55 am

There is noting to do to make 208 work, the Panasonic 2018 unit already can do this, it is either a bad ground or is has been restricted intentionally! This is not a complex issue and it also has nothing to do with AV as they are there to sell their overpriced junk and give bad advice. The EVSE just passes voltage. Anyone can test this on a properly wired 208 outlet with a ground, if it does not work then it was intentional in the design. Enough said. Nissan remains conservative and clueless about EV design features. The adapter system on the cord is a stupid and bulky as it can get, they likely thought the AV turbocord was a good idea and took the bulk a step further.
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DaveinOlyWA
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Re: 2018 Leaf - Charger throws fault on 240V

Sat Jun 09, 2018 9:12 am

aldanra wrote:Did anyone get an answer from Nissan on this?
I spoke to the dealer, and they referred to me to the Aerovironment support people (I am not sure why, probably they are the original manufacturers). When I talked to Aerovironment support, they told me that it needs to be 240 V input, and the "cord" will never work with less voltage. According to them the only solution is to install a true 240V outlet, which in our tri-phase complex I am not sure it is even possible.

It is a pretty bad design, but I would have expected to have a better answer from them than: the problem is in your home, so we will do nothing to help. I guess they should have at least made you aware of the problem before they sold you the cord.


Well AV is being sold and the new owners promise to "expand and enhance" the existing network so hopefully that will happen quickly (doubtful)

In talking with various AV personal and techs, I got the impression that the issue was tossed into Nissan's court. Considering the growing list of locations my LEAF cannot charge, I have to agree that Nissan needs to fix the issue.
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jjeff
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Re: 2018 Leaf - Charger throws fault on 240V

Sat Jun 09, 2018 4:33 pm

alozzy wrote:@Levenkay Yet, EVSE manufacturers other than Nissan have the ability to handle a range of supply voltage, usually from 100V to 250V.

My Zencar 32A portable EVSE handles 100V - 250V supply, as does the JuiceBox Pro 40. Most ClipperCreek EVSEs will take either 208V or 240V supply - just to name a few...

So, it can't be that hard for Nissan to do likewise.

I'm quite sure Levenkay was being sarcastic :)
As you said, tons of other much cheaper EVSEs that have no problem working on a wide range of voltages/frequencies. I believe his comment about Digi-key(which BTW is headquartered in my state and is the fourth largest electronic component distributor in North America) was meant to say how common and cheap it would to have been to get components that would have no problem working on the voltages were talking about here :)
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davewill
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Re: 2018 Leaf - Charger throws fault on 240V

Sat Jun 09, 2018 7:18 pm

jjeff wrote:
alozzy wrote:@Levenkay Yet, EVSE manufacturers other than Nissan have the ability to handle a range of supply voltage, usually from 100V to 250V.

My Zencar 32A portable EVSE handles 100V - 250V supply, as does the JuiceBox Pro 40. Most ClipperCreek EVSEs will take either 208V or 240V supply - just to name a few...

So, it can't be that hard for Nissan to do likewise.

I'm quite sure Levenkay was being sarcastic :)
As you said, tons of other much cheaper EVSEs that have no problem working on a wide range of voltages/frequencies. I believe his comment about Digi-key(which BTW is headquartered in my state and is the fourth largest electronic component distributor in North America) was meant to say how common and cheap it would to have been to get components that would have no problem working on the voltages were talking about here :)

Of course he was.

Anyway, since it works on 120v, I'm sure the components already cover the whole range. They purposely programmed it this way.
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alozzy
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Re: 2018 Leaf - Charger throws fault on 240V

Sat Jun 09, 2018 9:53 pm

Think we need sarcasm emojis, so dummies like me can figure that out :lol:
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smkettner
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Re: 2018 Leaf - Charger throws fault on 240V

Sun Jun 10, 2018 9:05 am

Was it the first generation 120v evse that was not really J1772 compliant but worked fine with LEAF but not other vehicles?
I wonder if this is the same. Maybe it is not built to control amps increase when the voltage is low. Could just rely on the LEAF max charge rate on 240 volts.
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davewill
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Re: 2018 Leaf - Charger throws fault on 240V

Sun Jun 10, 2018 11:41 am

smkettner wrote:Was it the first generation 120v evse that was not really J1772 compliant but worked fine with LEAF but not other vehicles?
I wonder if this is the same. Maybe it is not built to control amps increase when the voltage is low. Could just rely on the LEAF max charge rate on 240 volts.

The EVSE doesn't handle that. The amperage that the wiring, etc... can handle doesn't go up when the voltage fires down, so the EVSE advertises the same voltage whether on 240 or 208. For that matter, I don't think the LEAF's charger does that either.
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smkettner
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Re: 2018 Leaf - Charger throws fault on 240V

Sun Jun 10, 2018 12:20 pm

With a fixed charger output to the battery.... the input wattage would need more amps as the voltage sags.
I am speculating Nissan is limiting that rise in amperes by simply not allowing the lower 208 volts.
Yes a bit of conspiracy theory.

The pilot signal is supposed to direct the charging system to limit the amps drawn from the evse.
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Levenkay
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Re: 2018 Leaf - Charger throws fault on 240V

Sun Jun 10, 2018 5:43 pm

smkettner wrote:With a fixed charger output to the battery.... the input wattage would need more amps as the voltage sags.
I am speculating Nissan is limiting that rise in amperes by simply not allowing the lower 208 volts.
Yes a bit of conspiracy theory.
The pilot signal is supposed to direct the charging system to limit the amps drawn from the evse.
No problem; the charging system doesn't HAVE to deliver any particular power into the battery. Whatever power the input voltage represents at or below the EVSE's declared maximum current, that's what goes in.

smkettner
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Re: 2018 Leaf - Charger throws fault on 240V

Sun Jun 10, 2018 6:45 pm

Has anyone tried one of these failed Nissan evse on a Tesla or other EV that can pull 40+ amps?
1 bar lost at 21,451 miles, 16 months.
2 bar lost at 35,339 miles, 25 months.
LEAF traded at 45,400 miles for a RAV4-EV

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