User avatar
Ingineer
Posts: 2741
Joined: Fri Oct 15, 2010 1:09 pm
Delivery Date: 13 Jul 2011
Leaf Number: 6969
Location: Berkeley, California
Contact: Website

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

Mon Mar 28, 2011 5:39 pm

nader wrote:Based on your other post about adapters (very helpful btw) it looks like you can convert a dedicated 120v outlet to a 240v by swapping wires to create 2 hot wires. Is that possible? I imagine there would be wiring changes at the service panel too.
Yes, you can do this. You need to purchase a new 2-pole breaker, a new L6-20 outlet, and some red electrical tape.

First, be absolutely sure that it is a dedicated circuit! Use extreme caution!

1. Cut power to the service panel feeding the circuit.
2. Shut off and remove the original single-pole breaker (15 or 20A).
3. Locate the white neutral wire and remove it from the Neutral Bus bar.
4. Use red tape to cover the white wire so that it's now clearly red.
5. Verify power off and Remove the old outlet.
6. Tape the white wire here as well.
7. Connect and install the new 240V outlet. (Black to X, Red to Y)
8. Install the new 2-pole 15 or 20A breaker.
9. Wire the black and (now) red wires to the 2 screws on the breaker.
10. Replace the panel cover, restore power, and then turn on the new breaker.

-Phil
Easily Learn Electricity HERE! - - - - Website: http://evseupgrade.com/[/size] - - - - Like us on Facebook: EVSE Upgrade

User avatar
planet4ever
Posts: 4674
Joined: Sat Apr 03, 2010 9:53 pm
Delivery Date: 02 May 2011
Leaf Number: 1537
Location: Morgan Hill, CA, south of San Jose

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

Mon Mar 28, 2011 6:05 pm

GeekEV wrote:On a 120v outlet this mod is of little value to you. It's only useful if you have access to a 240v outlet.
Why would you say that? A typical 60% charge (from 20% to 80%) for a 120v-type user would need between 8 and 9 hours at 16A, but between 11 and 12 hours at 12A. I would consider that highly useful. Even for someone like me, who expects to use a 40% charge or less most of the time but has a 7 hour TOU rate window, the 16A bonus would cut cost if you were limited to 120v.

Actually, in my case I am now planning to put in a 240v L6-20 socket (and neglecting to mention it to the city, since I only have to run about a foot of wire to an outlet box and add a dual breaker). That will keep me comfortably within my 7-hour window even at 12A.

Ray
End of April 2013: Traded my 2011 SL for a 2013 S with charge pkg.

User avatar
davewill
Posts: 5069
Joined: Thu Mar 17, 2011 6:04 pm
Location: San Diego, CA, US

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

Mon Mar 28, 2011 6:11 pm

planet4ever wrote:
GeekEV wrote:On a 120v outlet this mod is of little value to you. It's only useful if you have access to a 240v outlet.
Why would you say that? A typical 60% charge (from 20% to 80%) for a 120v-type user would need between 8 and 9 hours at 16A, but between 11 and 12 hours at 12A. I would consider that highly useful. Even for someone like me, who expects to use a 40% charge or less most of the time but has a 7 hour TOU rate window, the 16A bonus would cut cost if you were limited to 120v.

Actually, in my case I am now planning to put in a 240v L6-20 socket (and neglecting to mention it to the city, since I only have to run about a foot of wire to an outlet box and add a dual breaker). That will keep me comfortably within my 7-hour window even at 12A.

Ray
Because the post you quoted was old, and he already decided NOT to offer higher charge rates. The mod is limited to 12amps, 120v or 240v.
2014 Rav4 EV, Blizzard Pearl White
2011 LEAF SL w/QC, Blue Ocean, returned at end of lease

User avatar
planet4ever
Posts: 4674
Joined: Sat Apr 03, 2010 9:53 pm
Delivery Date: 02 May 2011
Leaf Number: 1537
Location: Morgan Hill, CA, south of San Jose

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

Mon Mar 28, 2011 7:33 pm

davewill wrote:Because the post you quoted was old, and he already decided NOT to offer higher charge rates. The mod is limited to 12amps, 120v or 240v.
Actually, Dave, your post that I quoted was dated today, and was in response to nader, also dated today:
nader wrote:Still reading through all 48 pages of this thread so I am not sure what the outcome is but I would be interested. I have a 20amp 120v outlet in my garage that is begging to be used.
But I agree that your answer makes sense once you add the explanation that it will not be useful because you believe the 20A option is not going to exist.

Ray
End of April 2013: Traded my 2011 SL for a 2013 S with charge pkg.

User avatar
davewill
Posts: 5069
Joined: Thu Mar 17, 2011 6:04 pm
Location: San Diego, CA, US

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

Mon Mar 28, 2011 8:36 pm

planet4ever wrote:
davewill wrote:Because the post you quoted was old, and he already decided NOT to offer higher charge rates. The mod is limited to 12amps, 120v or 240v.
Actually, Dave, your post that I quoted was dated today, and was in response to nader, also dated today:
I was referring to the original post by Ingineer (that I now see was quoted by nader) asking if there was interest in higher charge rates.
2014 Rav4 EV, Blizzard Pearl White
2011 LEAF SL w/QC, Blue Ocean, returned at end of lease

User avatar
garygid
Gold Member
Posts: 12464
Joined: Wed Apr 21, 2010 8:10 am
Delivery Date: 29 Mar 2011
Leaf Number: 000855
Location: Laguna Hills, Orange Co, CA

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

Mon Mar 28, 2011 9:07 pm

planet...
Charge times you list are for 240v, not 120v power.
See SOC/GID-Meter and CAN-Do Info
2010 Prius, now for sale
2011 LEAF, sold in 2015
2018 Tesla Model 3
2014 Tesla S, Model 3 in 2019
PU: SDG&E
Solar PV: 33 x 225W -> 7 kW max AC
To Sell: X-treme 5000Li EV motorcycle

User avatar
Ingineer
Posts: 2741
Joined: Fri Oct 15, 2010 1:09 pm
Delivery Date: 13 Jul 2011
Leaf Number: 6969
Location: Berkeley, California
Contact: Website

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

Mon Mar 28, 2011 10:25 pm

I suspect even if the pilot authorized 20A on 120V the charger would still only pull 16A max. It might not even go over 12A!

I have not tested this yet, but I will at some point.

-Phil
Easily Learn Electricity HERE! - - - - Website: http://evseupgrade.com/[/size] - - - - Like us on Facebook: EVSE Upgrade

User avatar
garygid
Gold Member
Posts: 12464
Joined: Wed Apr 21, 2010 8:10 am
Delivery Date: 29 Mar 2011
Leaf Number: 000855
Location: Laguna Hills, Orange Co, CA

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

Mon Mar 28, 2011 10:36 pm

I thought somebody did test up to 16A on 120v, but not absolutely sure.

Offer 17 and higher (AV offers 30) and the LEAF draws only 16A.
See SOC/GID-Meter and CAN-Do Info
2010 Prius, now for sale
2011 LEAF, sold in 2015
2018 Tesla Model 3
2014 Tesla S, Model 3 in 2019
PU: SDG&E
Solar PV: 33 x 225W -> 7 kW max AC
To Sell: X-treme 5000Li EV motorcycle

User avatar
Ingineer
Posts: 2741
Joined: Fri Oct 15, 2010 1:09 pm
Delivery Date: 13 Jul 2011
Leaf Number: 6969
Location: Berkeley, California
Contact: Website

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

Mon Mar 28, 2011 11:29 pm

garygid wrote:I thought somebody did test up to 16A on 120v, but not absolutely sure.

Offer 17 and higher (AV offers 30) and the LEAF draws only 16A.
This is on 240v, but I haven't seen anyone report what happens on 120v, have you?

-Phil
Easily Learn Electricity HERE! - - - - Website: http://evseupgrade.com/[/size] - - - - Like us on Facebook: EVSE Upgrade

User avatar
planet4ever
Posts: 4674
Joined: Sat Apr 03, 2010 9:53 pm
Delivery Date: 02 May 2011
Leaf Number: 1537
Location: Morgan Hill, CA, south of San Jose

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

Tue Mar 29, 2011 1:28 am

garygid wrote:planet...
Charge times you list are for 240v, not 120v power.
Please enlighten me as to why that is true. I said:
planet4ever wrote:A typical 60% charge (from 20% to 80%) for a 120v-type user would need between 8 and 9 hours at 16A, but between 11 and 12 hours at 12A.
I was assuming that 100% would be about 27 kWh at the wall so 60% would be about 16 kWh. Going only to 80% there should be no slowdown at the end.

(16 kWh) / (16A * 120v) = 8.3 hours
(16 kWh) / (12A * 120v) = 11.1 hours

Of course we don't know that the onboard charger would do 16A at 120v, even if Phil's magic told it it could, but that was the assumption underlying my estimate.

Ray
End of April 2013: Traded my 2011 SL for a 2013 S with charge pkg.

Return to “EVSE / Charging Equipment and Networks”