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

Mon May 27, 2019 9:44 pm

Hi,

I couldn't find this specific question in the forums so I thought I would create my own post.
I've had a 2015 leaf for a year and a half bought used from California - I live in Vancouver CAN.
I commute to work mon-fri 60k total. I need to charge to 100 (or try to) almost every night - when it's not being used, its plugging in.
Recently, it will not seem to charge past 20/30k over 8hrs. The outlet / extension cord seem fine it just seems to stop charging at a certain point?? I'm just wondering if anyone has encountered this problem and has any suggestions as to what may be wrong.

Thanks,
Glennerd

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

Mon May 27, 2019 9:49 pm

Glennerd wrote:Hi,

I couldn't find this specific question in the forums so I thought I would create my own post.
I've had a 2015 leaf for a year and a half bought used from California - I live in Vancouver CAN.
I commute to work mon-fri 60k total. I need to charge to 100 (or try to) almost every night - when it's not being used, its plugging in.
Recently, it will not seem to charge past 20/30k over 8hrs. The outlet / extension cord seem fine it just seems to stop charging at a certain point?? I'm just wondering if anyone has encountered this problem and has any suggestions as to what may be wrong.

Thanks,
Glennerd
What do you mean by "20/30k"? Anyway, you may be encountering an issue with a charging timer. Is this an S, or an SV or SL?
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rdhauser
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Re: Won't charge more that 30k over 8hrs on a 120v at home.

Tue May 28, 2019 9:00 am

Right, as Lefty said, more details would help. Also remember that amps x volts = watts. If you're using 12 amps and 120 volts, you're only making 1.4 kW per hour so it's going to take something over 20 hours to put 30 kWh into the battery. That's a rough calculation, of course, lots of conversion and resistance factors will decrease it. But if it's stopping, the first thing to check is the car's timer, like Lefty said.
Dick
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LeftieBiker
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Re: Won't charge more that 30k over 8hrs on a 120v at home.

Tue May 28, 2019 12:23 pm

The 2015 Leaf has only the 24kwh pack, so charging it to "30k" isn't possible.
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WetEV
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Re: Won't charge more that 30k over 8hrs on a 120v at home.

Tue May 28, 2019 12:36 pm

LeftieBiker wrote:The 2015 Leaf has only the 24kwh pack, so charging it to "30k" isn't possible.
I think OP might mean 30km?
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LeftieBiker
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Re: Won't charge more that 30k over 8hrs on a 120v at home.

Tue May 28, 2019 12:43 pm

WetEV wrote:
LeftieBiker wrote:The 2015 Leaf has only the 24kwh pack, so charging it to "30k" isn't possible.
I think OP might mean 30km?
That would be an extremely low GOM range, but at this point who knows...?
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Nubo
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Re: Won't charge more that 30k over 8hrs on a 120v at home.

Tue May 28, 2019 4:15 pm

LeftieBiker wrote:
WetEV wrote:
LeftieBiker wrote:The 2015 Leaf has only the 24kwh pack, so charging it to "30k" isn't possible.
I think OP might mean 30km?
That would be an extremely low GOM range, but at this point who knows...?
I'm guessing OP is focusing on the DTE display and thinks of charging in terms of how many kilometers of indicated range has been added. They need 60km for their commute and want at least 100km indicated when they leave in the morning.
I noticed you're still working with polymers.

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

Tue May 28, 2019 9:18 pm

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

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

Tue May 28, 2019 9:57 pm

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.

Do you know how to switch the dashboard view to display State of Charge (SOC)? If not, watch this video:

https://www.youtube.com/watch?v=5zxLxPdAJhg
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Re: Won't charge more that 30k over 8hrs on a 120v at home.

Tue May 28, 2019 9:58 pm

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
Since charging from empty can take over 20 hours on 120 volt (L-1) charging, that isn't that unusual. Set the display to show the % of charge and tell us how high that gets over 8 hours - and from what starting %. If you use all the available charge every day and run short, then you need to install an L-2 240 volt charging station.

Alozzy got in ahead of me.
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