I normally charge at 32 amps with a 40 amp breaker in my box with no problems whatsoever.
Of course, 32 amps is 80% of 40, and within the code. 27.5 amps on 30 amp circuit is not. If you are charging a leaf, the actual draw is going to be between 27 and 28 amps. unless the voltage is 208, then might be as high as 30.I normally charge at 32 amps with a 40 amp breaker in my box with no problems whatsoever.
My son's 2014 LEAF has only been charged with a 120V outlet. It has 85,000 miles and 95% battery. I think there is something to be said for the 'trickle charge' appoach.Hey there, wondering about the charging at home. But doing some watching and reading and my overall thought is that the lower amperage that you can have for charging is better for the battery. For example, I can have a 50 amp breaker on my level two but I decided to go with a 20 amp breaker. My rationale is simply for a slower charge being easier on the battery. I’m even contemplating using a 120 for a 24 hour charge. I’m at home and can simply plan when I have to drive and need a quicker charge. I’m also in eastern Canada and get cold winters so my rationale is that if I can keep it concert charge on the battery it’ll keep it warm, since we know the leaf has no battery heating. What do you think? Am I out to lunch on this? Cheers.
If you're going to continue to use the 30 Amp dryer plug instead of a new, dedicated 40 or 50 amp circuit, it would best practice to use an adjustable EVSE model that can be set to 24 amps or lower; 30 amps x 0.80 = 24 amps. "Best practice" isn't just some casual advice, it's a safety issue and if not followed can degrade your wiring and other electrical components over time. No more stressed wires and peace of mind for a few hundred dollars over the long term.Just wondering re "over 24 amps but less than 40, needs a 50 amp plug", etc. Is this "best practice" or is there some other reason? I have been using the supplied charger on a regular 30A dryer outlet for over a year now. I measure a 27A draw.
When I ran 240V service for my 2019 LEAF the specs clearly said 50 amps.Of course, 32 amps is 80% of 40, and within the code. 27.5 amps on 30 amp circuit is not. If you are charging a leaf, the actual draw is going to be between 27 and 28 amps. unless the voltage is 208, then might be as high as 30.
Unless whoever installed that 30 amp dryer circuit "over wired" the gauge of wire by a lot, pushing 27.5 amps for a long time is going to make the cable between the circuit panel and the outlet get hot, and that isn't a good thing.
There is no "40 amp" NEMA size for a plug or outlet. NEMA jumps from 30 to 50, which is why I said what I did. If you are hard wiring than you can use wire and CB for 40 amps. If you are using a plug it needs to be wired and CB for 50 amp. You should not use a 50 amp outlet with lighter 40 amp wire and CB.
Actually, it's a great idea if you used properly! I guess you didn't read the @Steve52 post above?A typical dryer has a 30 amp service with 10 AWG wire. Using a dryer outlet to charge your LEAF is NOT a good idea for both the LEAF and your safety!
Just wondering re "over 24 amps but less than 40, needs a 50 amp plug", etc. Is this "best practice" or is there some other reason? I have been using the supplied charger on a regular 30A dryer outlet for over a year now. I measure a 27A draw.
RobK's post was what he was refering too, and no used that way is not a good idea. It is why the factory duel voltage EVSE has a 50 amp plug on it and not a 30.Actually, it's a great idea if you used properly! I guess you didn't read the @Steve52 post above?
Don't spread FUD just because something doesn't work for you.
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