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EVDRIVER
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Re: Nissan L1 EVSE third-party upgrade to both 120V and 240V

Tue Feb 15, 2011 8:48 am

rainnw wrote:I am not trying to set out any flame bait here regarding this "third party" or myself, but are there any other EE's that are just a tad bit skeptical about this? Don't get me wrong, I really want to believe in this mod.

But looking at pictures of a factory charger with some new power connectors wired up, and then statements like "oh, it won't run on 240VAC 'very long' before it blows up" and "just need to swap out a few parts, but don't know how much that will be" have got me a bit worried. Especially with no specifics eluding to this being just their 'secret sauce', when in reality, nobody in their right mind is going to want to de-pot and re-pot some high wattage electronics on their own, without fear of burning down houses/damaging property/shocking themselves/etc.

This is all compounded with the fact that in the name of japanese speed, cost efficiency, and globalization, would make much more sense for Nissan to make only one autoranging 50/60Hz, 90VAC-240VAC charger.

You don't just 'swap out a few magical parts' in a 120VAC only charger and suddenly double the wattage, pushing nearly 4 killowatts through it...unless that was the design from the start.

The Euro model could likely be modified with less work than a US model but they are not the same. Secondly the current is not being changed only the voltage and there are components that were designed with a specific voltage range besides the supply. It is possible to run for a while on 240 then possibly fail, even a compressor coming on in the same room would damage the unit when operating at 240. To increase the current to 16A at 120/240 would take a new processor/software as the pilot signal and GFI are software driven as well as duty cycles so simply adding a new 16A signal would not be safe.

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garygid
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Re: Nissan L1 EVSE third-party upgrade to both 120V and 240V

Tue Feb 15, 2011 9:14 am

When will more specific information be available about what was found in the L1 internals?
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Re: Nissan L1 EVSE third-party upgrade to both 120V and 240V

Tue Feb 15, 2011 9:16 am

garygid wrote:When will more specific information be available about what was found in the L1 internals?

What other specifics?

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Re: Nissan L1 EVSE third-party upgrade to both 120V and 240V

Tue Feb 15, 2011 9:36 am

1. What is the non-spec part of the stock L1 EVSE?

2. What components did you find, and their ratings?

3. A circuit diagram, at least as much as you know?

4. Any other helpful observations?

Thanks.
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EVDRIVER
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Re: Nissan L1 EVSE third-party upgrade to both 120V and 240V

Tue Feb 15, 2011 9:46 am

garygid wrote:1. What is the non-spec part of the stock L1 EVSE?

2. What components did you find, and their ratings?

3. A circuit diagram, at least as much as you know?

4. Any other helpful observations?

Thanks.
There is not exactly a non-spec part but more an operational issue but it is not a safety issue, I don't want to make any claims on their unit build other than it is decently made. As far as a diagram, I don't know any businesses that invest many days in a project and then publicly provide all the details of their work for a multitude of reasons. I do like the locking features. Once the J connector is in the car and locked it can't be removed and cutting it to get the EVSE is a bit pointless since that is the most expensive part. It can be locked in two places, placed in the car, under the hood and locked, in the trunk, etc.

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Re: Nissan L1 EVSE third-party upgrade to both 120V and 240V

Tue Feb 15, 2011 9:50 am

OK, what is the "operational issue", please?
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Re: Nissan L1 EVSE third-party upgrade to both 120V and 240V

Tue Feb 15, 2011 9:53 am

rainnw wrote:This is all compounded with the fact that in the name of japanese speed, cost efficiency, and globalization, would make much more sense for Nissan to make only one autoranging 50/60Hz, 90VAC-240VAC charger.
IMHO, for Nissan not to provide a universally compatible cordset was a shortsighted mistake. Let's hope they rectify it someday. Surely it would make much more economical and practical sense to produce the same unit for use all over the planet, and simply wire on different plugs for the different countries' outlets.

Why didn't Nissan do that? Your guess is as good as mine. And speaking of my guess :) it is that they were fearful that owners in this country would circumvent the NEC "hard wired EVSE" code with a 240V adapter, attempt to plug into a --gasp!-- dangerous dryer outlet, fry themselves... and sue Nissan. Such liability paranoia seems overkill to me. I mean, if Winnebago owners can plug into 240V outlets at RV parks, and boat owners can plug into them at marinas, why can't EV owners? And if Tesla can provide a universal cordset, why can't Nissan?

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Re: Nissan L1 EVSE third-party upgrade to both 120V and 240V

Tue Feb 15, 2011 10:11 am

Yanquetino wrote:
rainnw wrote:This is all compounded with the fact that in the name of japanese speed, cost efficiency, and globalization, would make much more sense for Nissan to make only one autoranging 50/60Hz, 90VAC-240VAC charger.
IMHO, for Nissan not to provide a universally compatible cordset was a shortsighted mistake. Let's hope they rectify it someday. Surely it would make much more economical and practical sense to produce the same unit for use all over the planet, and simply wire on different plugs for the different countries' outlets.

Why didn't Nissan do that? Your guess is as good as mine. And speaking of my guess :) it is that they were fearful that owners in this country would circumvent the NEC "hard wired EVSE" code with a 240V adapter, attempt to plug into a --gasp!-- dangerous dryer outlet, fry themselves... and sue Nissan. Such liability paranoia seems overkill to me. I mean, if Winnebago owners can plug into 240V outlets at RV parks, and boat owners can plug into them at marinas, why can't EV owners? And if Tesla can provide a universal cordset, why can't Nissan?

I agree, however they also don't expect people to find 240 outlets when traveling in the car but rather charge stations. The type of plugs used on say RV parks and welders are not exactly safe since the spades can be exposed for small fingers.

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Re: Nissan L1 EVSE third-party upgrade to both 120V and 240V

Tue Feb 15, 2011 10:39 am

EVDRIVER wrote:The type of plugs used on say RV parks and welders are not exactly safe since the spades can be exposed for small fingers.
Yup: that's right. The prongs on 240V plugs can be downright dangerous, no question. Make me wonder what the statistics would show for RV owner fatalities while plugging in at campgrounds. And do you think it's a matter of time before a Tesla owner fries himself? I have long thought that in all such instances the owners need to use either a PowerGrip Plug or at least a Plug Dog.

Even still, seems to me that, if Nissan were to provide a cordset with only a standard 120V plug in this country, they shouldn't be held liable for mishaps with higher voltages. After all, their cordset won't plug into, say, a 14-50 outlet. If an enterprising risk taker wants to later jury rigs an adaptor to plug the unit into 240V... well, that risk is on his/her shoulders.

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Re: Nissan L1 EVSE third-party upgrade to both 120V and 240V

Tue Feb 15, 2011 10:41 am

LOL. I know that's the public safety mentality these days, but my own opinion is that small fingers shouldn't be plugging in electric cars, ya know what I mean? :lol:

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