Slower speed is better for battery longevity. But with active cooling, the difference in stress to the battery between L1 and L2 may not be significant enough to offset the inconvenience of the days long charge time. I recommend L2 charging, and some folks have said they charge at a lower amperage than the EVSE's max (32A) as well. Also avoid being at max charge for extended period of time.
Level 1 ⚡ vs level 2 charge⚡⚡ ?
Assuming speed of charge is not in the equation, which is better choice for battery longevity. ? Like is there any research of whether it's good to use one more than the other if u have the choice.
I know that level 3 is not recommended unless in more emergency situations.... If one can help it, it's probably best to avoid. Pls correct me if I'm wrong....
I know that level 3 is not recommended unless in more emergency situations.... If one can help it, it's probably best to avoid. Pls correct me if I'm wrong....
1 - 17 of 17 Posts
Sounds like if I have a choice level 1 or 2 are both equally safe then Thanks for the info brother...
We’ve come a long way since fast charging was not recommended. Active cooling helps mitigate and negatives. I fast charge weekly to 80Assuming speed of charge is not in the equation, which is better choice for battery longevity. ? Like is there any research of whether it's good to use one more than the other if u have the choice.
I know that level 3 is not recommended unless in more emergency situations.... If one can help it, it's probably best to avoid. Pls correct me if I'm wrong....
Level 3 weekly?
The only long term data available on fast charging and battery health is mainly from Teslas. Despite the active cooling, regular supercharger use does negatively impact their battery health. It may be small, but it adds up. For occasional road trips not a big deal, but frequent usage (like Tesloop) reduced their range faster than normal.We’ve come a long way since fast charging was not recommended. Active cooling helps mitigate and negatives. I fast charge weekly to 80
How to Maximize your Tesla's Battery Efficiency and Life | Optiwatt
We’ve put together the comprehensive guide to maximizing your battery efficiency and extending your battery life.
optiwatt.com
I use DC fast charging to charge upto 80% and once a month 80% to 100% using level 2 charging at home.
Harvard study says Level 1 charging uses 6% more electricity than level 2 charging.
EV types, plugs, and home charging | Electric Cars | Harvard T.H. Chan School of Public Health
Harvard study says Level 1 charging uses 6% more electricity than level 2 charging.
EV types, plugs, and home charging | Electric Cars | Harvard T.H. Chan School of Public Health
Definition of regular is probably multiple times a week to as much as daily. Once a week or less, you should be fineThe only long term data available on fast charging and battery health is mainly from Teslas. Despite the active cooling, regular supercharger use does negatively impact their battery health. It may be small, but it adds up. For occasional road trips not a big deal, but frequent usage (like Tesloop) reduced their range faster than normal.
.How to Maximize your Tesla's Battery Efficiency and Life | Optiwatt
We’ve put together the comprehensive guide to maximizing your battery efficiency and extending your battery life.
From your question Dee I'm guessing you want to keep the car for the long term (driven into the ground)?
If your use case is to trade in or upgrade in 5 or 6 years, then I don't think charging speed will be a factor. This is similar to the request for Nissan to put in a customizable charge limit. If you want to maximize battery and life of the car, then slow charge to <80%. For a 6 year usable life, enjoy the car and charge as fast and as much as you want.
If your use case is to trade in or upgrade in 5 or 6 years, then I don't think charging speed will be a factor. This is similar to the request for Nissan to put in a customizable charge limit. If you want to maximize battery and life of the car, then slow charge to <80%. For a 6 year usable life, enjoy the car and charge as fast and as much as you want.
No. That poster is poorly informed. I'll attach a link with all the supporting reference, data, and links you'll want. The data is available, too many folks don't research adequately.Level 3 weekly?
EV Charging - Some Best Practices | Nissan Ariya Forum (ariyaforums.com)
EV Charging Best Practices.pdf - Google Drive
Bottom line:
Faintly, L2 is better than L1 for the rest of the car as it's not "awake" or spending as much time under charge. No L2 charge can get to a rate that will degrade Ariya battery. Big disclaimer: I only assume Ariya "sleeps" when it's CPU/BMS and etc aren't needed. In the scale of things I suppose it's this:
L2 - Better than L1 but just a little.
L1 - Good
Slow L3 - OK when slow (say <50KW) DC. They exist but are pretty rare, are not what folks think of when "fast charging", and aren't convenient. Not a lot of data on this (none that I know of)
*
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L3 Fast charging - They literally do harm
SoC (State of Charge) is a big deal. Don't charge more than you need too.
Thank u brother. This is very helpful info
No. That poster is poorly informed. I'll attach a link with all the supporting reference, data, and links you'll want. The data is available, too many folks don't research adequately.
EV Charging - Some Best Practices | Nissan Ariya Forum (ariyaforums.com)
EV Charging Best Practices.pdf - Google Drive
Bottom line:
Faintly, L2 is better than L1 for the rest of the car as it's not "awake" or spending as much time under charge. No L2 charge can get to a rate that will degrade Ariya battery. Big disclaimer: I only assume Ariya "sleeps" when it's CPU/BMS and etc aren't needed. In the scale of things I suppose it's this:
L2 - Better than L1 but just a little.
L1 - Good
Slow L3 - OK when slow (say <50KW) DC. They exist but are pretty rare, are not what folks think of when "fast charging", and aren't convenient. Not a lot of data on this (none that I know of)
*
*
L3 Fast charging - They literally do harm
SoC (State of Charge) is a big deal. Don't charge more than you need too.
Last question today...
If you arrive home at an adequate SOC for the following days needs (ie 65%), would one still charge to 70-80% just bc of ABC rule ?🤔
I do not for either of my EVs. I only charge when it goes below 30%, or if I anticipate needing more range than what's available. We have short commutes, so that translates to charging about once per week @ L2. I'm planning to drive our cars into the ground, 10+ years.Last question today...
If you arrive home at an adequate SOC for the following days needs (ie 65%), would one still charge to 70-80% just bc of ABC rule ?🤔
Ask away, I come by here to help fellow EV's owners.Last question today...
If you arrive home at an adequate SOC for the following days needs (ie 65%), would one still charge to 70-80% just bc of ABC rule ?🤔
Your direct answer:
No, I would not recharge if I had more power than I needed for my next trip. I do have a "minimum balance" by which I always recharge back to JIC SHTF. For me that's back up to 50% on each return then stop.
Thoughts:
There is some disagreement in data on what SoC begins to be an issue, but there are few reasonable folks that would suggest 70% or lower is going to be harmful enough to matter. Timing can matter best practice is to also be at whatever peak charge is needed for as little as possible. EG: I charge up daily to 63% on work days and have the car time it to get there just before departure. You don't have that, For weekends and end of very work day I only charge to 50% since we don't have a fixed 60 mile trip planned for that day, and have the car return to that level anytime it gets home again. It also knows to "departure charge" to 63% m-F mornings.
But, I can set my max charge level vis any one of a number of apps, and trigger that charge by a quite a few things. GPS location, time of day, schedule departure, etc.. To my knowledge you don't have that. Because I can program behind the scene's what's happening I get to tell my wife "come home and plug it in. Each time, every time". As far as she know the world stops rotating if she doesn't (her fault, I've told her to RTFM countless times). That gives us a strong habit to count on, and I just let software handle the rest. I don't think you get that.
My point is this: There is a need to balance best battery practice vs driver interest/willingness in managing the thing vs needs of every day life. I was able, I think, to strike a very good balance. For now anyway, you have fewer tools. I encourge you to not let battery management detract from what's best for your life and enjoyment of the car.
🙏🏼 thnks for all your insight my man
OP is asking for general long term health. Once a week isn’t going to kill your battery. Also, most of the speed our car hits is 80kw/h (past 35ish%) and a heck of a lot of our free evgo are old 50kw ccs chargers. So no, you won’t kill the battery if you charge like that once a week, especially sinceNo. That poster is poorly informed. I'll attach a link with all the supporting reference, data, and links you'll want. The data is available, too many folks don't research adequately.
EV Charging - Some Best Practices | Nissan Ariya Forum (ariyaforums.com)
EV Charging Best Practices.pdf - Google Drive
Bottom line:
Faintly, L2 is better than L1 for the rest of the car as it's not "awake" or spending as much time under charge. No L2 charge can get to a rate that will degrade Ariya battery. Big disclaimer: I only assume Ariya "sleeps" when it's CPU/BMS and etc aren't needed. In the scale of things I suppose it's this:
L2 - Better than L1 but just a little.
L1 - Good
Slow L3 - OK when slow (say <50KW) DC. They exist but are pretty rare, are not what folks think of when "fast charging", and aren't convenient. Not a lot of data on this (none that I know of)
*
*
L3 Fast charging - They literally do harm
SoC (State of Charge) is a big deal. Don't charge more than you need too.
1. Liquid cooling (make sure you turn on the active cooling charge option)
2. There’s a reserve that it has to account for inevitable degradation
Didn't bother to do the research, right? Even though I spoon fed it to you. As you would have seen most of the EV world doesn't agree with you, but tis a free world. My best to you nonetheless.
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