What is the better charging habit for battery health?

[timbop]

Nah, too much math to do and no proven benefits.

If that was too complicated for you, then sure plug in every day.

I'm working from home and go 4 or 5 days without even getting in the car, so there's no need to leave it sitting at 90% for 5 days.

Sponsored

 

[RickMachE]

In April or May if it's at 74% and you aren't planning to go anywhere there's no need to plug it in

To keep the 12 volt battery charger and stop the vehicle from entering deep sleep.

 

[Chudsaviet]

If that was too complicated for you, then sure plug in every day.

I'm working from home and go 4 or 5 days without even getting in the car, so there's no need to leave it sitting at 90% for 5 days.

Which part of "no proven benefits" don't you understand?

 

[sotek2345]

I would think the absolute best for the battery would be to keep it as close to 50% charge as possible, and recharge it as little as possible. But that doesn't make for a very useful vehicle.

 

[Chudsaviet]

I would think the absolute best for the battery would be to keep it as close to 50% charge as possible, and recharge it as little as possible. But that doesn't make for a very useful vehicle.

What makes you think so?

 

[Motomax]

You’re going to get a lot of “as long as you don’t charge past 90% regularly, you’ll be fine” posts. Too many people don’t understand the difference between “acceptable practices” and “best practices”.
I am still trying to find a concrete answer to this question myself. There isn’t really a consensus on it though.

50%give or take 10% is lithium batteries happy place, <10% or >90% are it’s im angry stage. That said the vehicle should be plugged in at all times, especially during hot days or cold days so the vehicle can prevent damaging battery temps.
the correct answer is find a percent that works comfortably for your daily use, set your max charge level around that number and plug it in every day.

 

[sotek2345]

What makes you think so?

That is what Ford recommends as the best state of charge to store the car.

 

[BMT1071]

The 'full tank every morning' principle is one of the things I like about BEV ownership. For me that means charging to 90% every night. Do I routinely need that many miles available? Nope. Have I ever driven my MME that many miles in a day? Nope. But one day I might. ?

 

[timbop]

To keep the 12 volt battery charger and stop the vehicle from entering deep sleep.

Leaving it unplugged for a week in moderate weather will be fine for the LVB. When the software is working properly it will wake up from that deep sleep

 

[timbop]

Which part of "no proven benefits" don't you understand?

For maximum longevity keeping it in the middle SOC range is best based on actual data. It isn't a particularly big difference, but it exists.

 

[Chudsaviet]

For maximum longevity keeping it in the middle SOC range is best based on actual data. It isn't a particularly big difference, but it exists.

So just set it to 50% and plug in every time.

 

[BDC]

FWIW, there was a real world study of over 6,000 fleet EVs with lots of details about the types of charging, the SOC, temperatures, etc. Key takeaway seems to be that DCFC and heat are really bad, but lots of things can cause battery degradation. The good news - looks like overall degradation isn't too bad and batteries will remain useful for years. Of course, this was pre-Mach E, so no details about our cars.

https://www.geotab.com/blog/ev-battery-health/

 

[BMT1071]

FWIW, there was a real world study of over 6,000 fleet EVs with lots of details about the types of charging, the SOC, temperatures, etc. Key takeaway seems to be that DCFC and heat are really bad, but lots of things can cause battery degradation. The good news - looks like overall degradation isn't too bad and batteries will remain useful for years. Of course, this was pre-Mach E, so no details about our cars.

https://www.geotab.com/blog/ev-battery-health/

This is what the key takeaway is for me:
" In fact, overall degradation has been very modest, with an average capacity loss of just 2.3% per year. Under ideal climate and charging conditions, the loss is 1.6%."
The miniscule difference between average and ideal makes all of the arguing and worry about how to treat the battery seem pretty silly. Just don't abuse it and you'll be fine.

 

[TruWrecks]

I have been watching LiON batteries evolve since they began. Several here have been around long enough.

From all my experience with charging and storing LiON batteries and LiCN batteries of all sizes they last longest stored between 70% and 90% full. I have a few batteries that have been stored for over 8 years that still have 90% capacity. And our car batteries are more durable than those.

Set you charge schedule for Home to 80 or 90% and plug it in whenever it is sitting there doing nothing. The car will manage the rest.

 

[woody]

Slow charge (120V) as often as possible in hotter weather. Especially when directly from solar production (remember these batteries are not solid state). We cheat: we are able to alternate our EVs charging directly from solar.
Leave plugged in for conditioning year round
Currently no real worries to 100% since 100% is actually only 90%( use as much solar as you can).

Sponsored