[dafish]

As an Aryia ex-pat I drop by from time to time to see how the things are going, see what I might learn, and etc. In recent weeks I've noticed a few posts talking about charging practices, and by and large leading you in poor directions.

Having gone through the exact same question, search for truth, study, learn, and evaluate process many of you are, I wondered how I might contribute to your success. FWIW, during the learning process I found I had almost all of my pre-conceived notions on the matter wrong.

The link below shares answers. You'll find them consistent with the tribal knowledge of Bolt, Leaf, Tesla, and etc forums. For whatever reason some of the answers kicked around this forum have leaned towards myths, rumors, and outright wrong information. Not all of course, there are many talented folks here. But enough to perhaps benefit from some clear answers.

I don't want to come off as some blow-hard (you've got one of those already), so I made sure the link shared had adequate quality references enabling anybody interested to dig deep into the science, research, and issues at hand. I found it more than enough to support the best practices stated, I think anybody here that takes the time to dig deeper will too.

Naturally your YMMV, and perhaps worth no more than you paid for it. Still, hopefully it helps some of my EV brethren.

EV Charging Best Practices

Warmest regards,

-d

 

[atreis]

I completely agree with dafish, and do wish Nissan would offer charge limiting. Whether it really needs it or not, it certainly wouldn't cause harm, so why not? FWIW, I have a great deal of experience maintaining NMC chemistry batteries (what Ariya has) for a different purpose. The batteries are essentially the same though. I do most of my charging at home. Since I keep my cars for 8-10 years, battery longevity is important to me. What I do:

Time my charge so that the car will reach 100% right before I leave for work. That way it spends very little time at 100%. (Time spent at stressful voltages is the critical factor here.) The drive to work knocks off 15% of that right away, putting it back into an acceptable range. Drive home gets it down to 70%. Continue driving until I reach 25-35% and then start over. I drive to work three times a week, so doing this I end up charging once a week on average, and the car spends no time at a stressfully low SOC, and only a very short time (an hour or so) at 100%, with the average being somewhere around 60%. Ask me 10 years from now how well it worked.

 

[DallasEV]

I completely agree with dafish, and do wish Nissan would offer charge limiting. Whether it really needs it or not, it certainly wouldn't cause harm, so why not? FWIW, I have a great deal of experience maintaining NMC chemistry batteries (what Ariya has) for a different purpose. The batteries are essentially the same though. I do most of my charging at home. Since I keep my cars for 8-10 years, battery longevity is important to me. What I do:

Time my charge so that the car will reach 100% right before I leave for work. That way it spends very little time at 100%. (Time spent at stressful voltages is the critical factor here.) The drive to work knocks off 15% of that right away, putting it back into an acceptable range. Drive home gets it down to 70%. Continue driving until I reach 25-35% and then start over. I drive to work three times a week, so doing this I end up charging once a week on average, and the car spends no time at a stressfully low SOC, and only a very short time (an hour or so) at 100%, with the average being somewhere around 60%. Ask me 10 years from now how well it worked.

Atreis, you've done in a very precise manner what I have done with my Tesla, which I set to 80%. It ends up being charged roughly once a week or so when it gets down to ~30%. I've owned the car for 5 years, and my max range has gone from ~310 miles brand new to currently 296 at about 45k miles on the odometer. That translates to about 5% loss in range.

So I think that's real world evidence showing the methodology works. The Ariya may differ slightly, but I plan to do similar with it. Just wish Nissan would make it easier.

 

[new2niss]

@dafish Thanks.. Small question, why ex-pat?
I thought charging this would be similar to the iphone, consider it has a built-in optimized charge function, and it stops charging at 80%.. since ariya doesn't have that same built-in mode, I guess we have to set some schedule.
@atreis As for my personal test, I'd charge late at night (6-8 hrs) to reach 80% or like you 100%.. My drive also 4 times a week, 25 miles round trip with some rough pothole patch... Just hope 10 yrs battery warranty still works, or halfway something always happens..
Good stuff though. I wish I paid more attention on my electronics class then ...

 

[nexus2nexus]

someone on this forum told me not having a charge limit was no big deal and he would always charge to 100%

 

[DallasEV]

someone on this forum told me not having a charge limit was no big deal and he would always charge to 100%

Forums are populated by enthusiasts, whatever the subject. You just have to keep that in mind so you can separate out the otaku level knowledge on something vs the otaku level biased opinion. Still, this is pretty tame compared to saying anything negative on the Tesla forums.

 

[nexus2nexus]

Forums are populated by enthusiasts, whatever the subject. You just have to keep that in mind so you can separate out the otaku level knowledge on something vs the otaku level biased opinion. Still, this is pretty tame compared to saying anything negative on the Tesla forums.

as a tesla owner, I'll be the first to point out its flaws.
I bet the blind defenders of car/brands are also big into partisanship in everything else in life.

 

[KainDRG]

as a tesla owner, I'll be the first to point out its flaws.
I bet the blind defenders of car/brands are also big into partisanship in everything else in life.

I juat hope Nissan gets their act together and adds a charge % limiter but I won’t get my hopes up since my Leaf doesn’t have one

 

[atreis]

I juat hope Nissan gets their act together and adds a charge % limiter but I won’t get my hopes up since my Leaf doesn’t have one

The Leaf used to have one - they removed it on later models. So yes, it seems unlikely that they will add it. We can still hope though.

 

[EarlyEVadopter]

As an Aryia ex-pat I drop by from time to time to see how the things are going, see what I might learn, and etc. In recent weeks I've noticed a few posts talking about charging practices.
Having gone through the exact same question, search for truth, study, learn, and evaluate process many of you are, I wondered how I might contribute to your success. FWIW, during the learning process I found I had almost all of my pre-conceived notions on the matter wrong.

The link below shares answers. You'll find them consistent with the tribal knowledge of Bolt, Leaf, Tesla, and etc forums. For whatever reason some of the answers kicked around this forum have leaned towards myths, rumors, and outright wrong information. Not all of course, there are many talented folks here. But enough to perhaps benefit from some clear answers.

I don't want to come off as some blow-hard (you've got one of those already), so I made sure the link shared had adequate quality references enabling anybody interested to dig deep into the science, research, and issues at hand. I found it more than enough to support the best practices stated, I think anybody here that takes the time to dig deeper will too.

Naturally your YMMV, and perhaps worth no more than you paid for it. Still, hopefully it helps some of my EV brethren.

EV Charging Best Practices

Warmest regards,

-d

There’s some good info here. Thanks for sharing!

 

[PNWariya]

The Leaf used to have one - they removed it on later models. So yes, it seems unlikely that they will add it. We can still hope though.

Yeah I didn't like that they removed that great feature. I also didn't care for the analog speedometer they put in the newer ones, but oh, well. Once my Ariya is delivered I will do some charge timing experiments to get the timing right for an 80% charge...

 

[KainDRG]

The Leaf used to have one - they removed it on later models. So yes, it seems unlikely that they will add it. We can still hope though.

Ah got it. I’ve had a 2012 for the past 5 years so that must be why

 

[MrSteve007]

someone on this forum told me not having a charge limit was no big deal and he would always charge to 100%

It might have been me. I had a 2012 and 2015 Leaf. I’d always charge them to 100%. I sold the 2015 Leaf at the end of 2021 with 60k miles. It had zero indicated battery degredation when sold, lost zero range from new, but was mostly charged via 120v, never quick charged and used in mild Seattle. Zero problems.

 

[dafish]

I stop by in peace, don't want disparage others decisions. I can say that when marketplace changes occurred I felt exercising my reservation was no longer the best decision for me. If it would help you to know more PM me and I'll help as I can.

regards,
-d

 

[dafish]

someone on this forum told me not having a charge limit was no big deal and he would always charge to 100%

Yea, I've seen that a few times. On the other hand seeing enough of that motivated me to help out, so what the heck.

FWIW, I know a guy that does the same thing. For him once an idea is in his head he'll defend it in all sorts of irrational ways. You just gotta let those folks go. He changes cars every 2-3 years, so he never experiences the damage he does. Or perhaps more truthfully because of his poor experiences he's learned to trade every few years. Is actually a good guy, just mechanically inept and seems to act irresponsibly as a subconscious reaction.

Remember, charge often to as low a level as reasonable is the TL;DR. No need to be anal either, just use some moderate prudence and move on.

See ya fella's,

-d