Astros
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Joined: Wed Oct 11, 2017 11:21 am
Delivery Date: 28 Apr 2018
Leaf Number: 310136
Location: Seattle, WA

Re: Won't charge more that 30k over 8hrs on a 120v at home.

Wed May 29, 2019 10:03 am

Glennerd wrote:Sorry, I meant it will only give us about 20km - 30km over an 8 hour period on 120v.
Its an Nissan Leaf SV.
Thank,
Glennerd

One possibility is that your wall outlet isn’t properly grounded. I had that problem when I first got my Leaf, and running a heavy duty extension cable to a better outlet fixed it.
2019 Deep Blue SL Plus

LeftieBiker
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Location: Upstate New York, US

Re: Won't charge more that 30k over 8hrs on a 120v at home.

Wed May 29, 2019 12:59 pm

Astros wrote:
Glennerd wrote:Sorry, I meant it will only give us about 20km - 30km over an 8 hour period on 120v.
Its an Nissan Leaf SV.
Thank,
Glennerd

One possibility is that your wall outlet isn’t properly grounded. I had that problem when I first got my Leaf, and running a heavy duty extension cable to a better outlet fixed it.



If charging is just stopping before it finishes, then it may be a charge timer issue, or an outlet issue as noted here.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

Oilpan4
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Leaf Number: 004270

Re: Won't charge more that 30k over 8hrs on a 120v at home.

Wed May 29, 2019 3:59 pm

If I leave my duosida evse in the sun it over heats, faults out, then won't charge again until it cools off and I cycle power on the evse.
If ypir car is always charging and never getting to 100% between trips you probably need to step it up to 240v power.
2011 white SL leaf with 2014 batt.
Chargers: Panasonic brick moded for 240v, duosida 16a 240v and a 10kw setec portable CHAdeMO
Location: 88103

SageBrush
Posts: 4225
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: Colorado

Re: Won't charge more that 30k over 8hrs on a 120v at home.

Wed May 29, 2019 4:51 pm

Presuming that there has been an abrupt drop-off in range collected overnight this sounds like an overheating issue to me somewhere in the circuit. I would start with a new and beefier extension cord, and if that does not solve things then replace the outlet.

Always be sure that the plugs sit firmly in their sockets and NEVER wiggle them to disconnect -- that just destroys the connection over time.
2013 LEAF 'S' Model with QC & rear-view camera
Bought off-lease Jan 2017 from N. California
Car is now enjoying an easy life in Colorado
03/2018: 58 Ahr, 28k miles
11/2018: 56.16 Ahr, 30k miles
-----
2018 Tesla Model 3 LR, Delivered 6/2018

Oilpan4
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Joined: Wed Jan 09, 2019 10:51 pm
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Re: Won't charge more that 30k over 8hrs on a 120v at home.

Wed May 29, 2019 7:31 pm

All too often people try to use 89 cent receptacles to charge something like an electric vehicle.
Those are fine for plugging in a cell phone or laptop charger.
The evse needs a commercial industrial grade duplex receptacle, those cost more like $4 each.
2011 white SL leaf with 2014 batt.
Chargers: Panasonic brick moded for 240v, duosida 16a 240v and a 10kw setec portable CHAdeMO
Location: 88103

LeftieBiker
Moderator
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Joined: Wed May 22, 2013 3:17 am
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Location: Upstate New York, US

Re: Won't charge more that 30k over 8hrs on a 120v at home.

Wed May 29, 2019 8:03 pm

Oilpan4 wrote:All too often people try to use 89 cent receptacles to charge something like an electric vehicle.
Those are fine for plugging in a cell phone or laptop charger.
The evse needs a commercial industrial grade duplex receptacle, those cost more like $4 each.


As long as the plug is mostly left in, a good $2 household outlet will work fine. It's the practice of unplugging the EVSE from the house after charging that is the real issue.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

SageBrush
Posts: 4225
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: Colorado

Re: Won't charge more that 30k over 8hrs on a 120v at home.

Thu May 30, 2019 5:00 am

LeftieBiker wrote:
Oilpan4 wrote:All too often people try to use 89 cent receptacles to charge something like an electric vehicle.
Those are fine for plugging in a cell phone or laptop charger.
The evse needs a commercial industrial grade duplex receptacle, those cost more like $4 each.


As long as the plug is mostly left in, a good $2 household outlet will work fine. It's the practice of unplugging the EVSE from the house after charging that is the real issue.

Or prior outlet use that has loosened the contacts to the plug.
2013 LEAF 'S' Model with QC & rear-view camera
Bought off-lease Jan 2017 from N. California
Car is now enjoying an easy life in Colorado
03/2018: 58 Ahr, 28k miles
11/2018: 56.16 Ahr, 30k miles
-----
2018 Tesla Model 3 LR, Delivered 6/2018

Oilpan4
Gold Member
Posts: 571
Joined: Wed Jan 09, 2019 10:51 pm
Delivery Date: 10 May 2018
Leaf Number: 004270

Re: Won't charge more that 30k over 8hrs on a 120v at home.

Sat Jun 01, 2019 4:05 pm

Yep that's why nec has guidelines for evse circuits.
2011 white SL leaf with 2014 batt.
Chargers: Panasonic brick moded for 240v, duosida 16a 240v and a 10kw setec portable CHAdeMO
Location: 88103

SageBrush
Posts: 4225
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: Colorado

Re: Won't charge more that 30k over 8hrs on a 120v at home.

Sat Jun 01, 2019 7:29 pm

alozzy wrote:You are focusing on the wrong metric. How much does the percent state of charge increase over the 8 hours of charging?

For a 120V supply, the stock EVSE should pull about 12A, so the charging rate is nominally 1.4 kW, but with losses more like 1.3 kW. If the charging rate averages 1.3 kW over 8 hours, that should add about 10 kWh of energy to the battery pack. So, you should see the SOC jump by at least 50% after an overnight charge.

More L1 losses than 0.1 kW. I think ~ 83% make it to the battery so 1.44 KW * 0.83 = 1.2 kW.
And that is based on a battery with new-like resistance.

I'll call it 1.15 kW for his car, so
1.15 kW * 8 hrs =
9.2 kWh over 8 hrs.

Unless the GOM is being fooled by a tale-end drive up a mountain the reported range increase is unlikely to represent 9.2 kWh into the battery. As I said earlier, this sounds like overheating and a truncated charging.
2013 LEAF 'S' Model with QC & rear-view camera
Bought off-lease Jan 2017 from N. California
Car is now enjoying an easy life in Colorado
03/2018: 58 Ahr, 28k miles
11/2018: 56.16 Ahr, 30k miles
-----
2018 Tesla Model 3 LR, Delivered 6/2018

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