-
Want to remove ads? Register an account and login to see fewer ads, and become a Supporting Member to remove almost all ads.
Any best practises for charging
- Thread starter Sw1000
- Start date
Zilla91
Active Member
Jason71
Well-Known Member
ElectricPolice
Member
To be honest it’s all voodoo and speculation. Experts on here will quote different supporting multiple ways of how best to charge.. and shoot me down in flames.
It will make f all difference if you just charge it and use it. Maybe in 5 years time there might be a difference but who knows? How do you charge your phone, every day or only when it’s flat? Has one way meant your current phone has lasted longer than your previous one?
I put mine on between 12:30-4:30 (5p Octopus Go) every night until it reaches 80 or 90% full. Which, if I’ve been on a long journey, then it takes 3 nights to complete. I like to leave some room to top up 5% or so in the day from solar to keep from exporting before my house batteries fill up
I’m a tight ar$3
It will make f all difference if you just charge it and use it. Maybe in 5 years time there might be a difference but who knows? How do you charge your phone, every day or only when it’s flat? Has one way meant your current phone has lasted longer than your previous one?
I put mine on between 12:30-4:30 (5p Octopus Go) every night until it reaches 80 or 90% full. Which, if I’ve been on a long journey, then it takes 3 nights to complete. I like to leave some room to top up 5% or so in the day from solar to keep from exporting before my house batteries fill up
I’m a tight ar$3
I'm also a tight ar$e so I use the free BP pulse and work chargers as often as I can. This typically means I charge the car (Sept '21 M3LR) up to 90% on AC chargers once or twice a week, I take it down to anything between 15 and 40%. I also use superchargers when I'm doing longer trips but usually charge to 80% (more due to time and also as I only charge as much as I have to due to the cost on super chargers).
I've decided not to worry too much about optimal charging regimes and just use the car to suit me.
I've decided not to worry too much about optimal charging regimes and just use the car to suit me.
Just a couple more comments.
.
- Tesla has spoken: A plugged-in Tesla is a happy Tesla. And it means that if you do that, you don't have to worry about whether the car is charged or not when you have to abruptly leave on a trip somewhere.
- Tesla mildly suggests that 90% is the maximum regular charge when one is doing #1, above. Lots of other people think that 80% is better for battery longevity. There seems to be a difference in that regard with LFP batteries, where going to 100% is a Good Idea.
- I've, personally, noted that the range estimation calculator seems to get more accurate when there's deep discharge->deep charge cycles, like on long trips. Usually, the range estimate increases when this happens. Certainly true when first getting the car back in 2018; not so true nowadays in 2022.
- If you're about to go on a longish trip somewhere and you know when, charging to 100% on a non-LFP battery just before one leaves doesn't bother Tesla and is recommended practice.
- I've occasionally charged to 100% on a road trip at a Supercharger if (a) we're out eating a meal and don't care if takes longer for the car to finish and (b) that's at a non-crowded SC location, where Tesla will let one do that. The idea being that right after eating, we're going to pop into the car and take off. I've gathered that it's not a good idea to charge to 100% and then just let the car sit there. Again, this is with a non-LFP battery.
.
Mr H
Active Member
I keep my phone between 20 and 80%, it's now a year old and battery health is at 100%, i treat my car and anything else with a lithium battery the same way. The single worse thing you can do is to charge it to 100% and leave it there. Most people plug their phones in at night before bed and wonder why the battery degrades so quickly.
Best practice:
10 to 80% on SC will charge in 26 minutes.
Then 80 to 90% will go in another 10 minutes.
And last 10% up to 100% will require another 30 mins+
So always charge to 80% and go to the next SC if you needed and can reach. It is more time effective to charge to 80% and to leave till next one. And better to your battery health
10 to 80% on SC will charge in 26 minutes.
Then 80 to 90% will go in another 10 minutes.
And last 10% up to 100% will require another 30 mins+
So always charge to 80% and go to the next SC if you needed and can reach. It is more time effective to charge to 80% and to leave till next one. And better to your battery health
Jason71
Well-Known Member
Samsung have introduced a feature to the Galaxy line to only charge to 85%. Finally common sense basic battery saving features on phones.
They do. The phone will learn your habits and charge to 80% overnight and then top up to 100% just before it thinks you're likely to need it i.e. when you wake up. Great if you keep a routine, not so great if you're completely random like me. You can't set a specific percentage though.
But I'd be wary of assuming an iPhone at 100% is actually running with a full battery - all phones do battery management, so it's entirely plausible the phone is already managing it's charge without showing you it's doing it.
Drew57
Active ember
In 27 months I've charged the car at 80-90% every day & displayed range has dropped 5% since new. That seems fair given that I've only once deliberately kept it below 10% for the BMS to recalibrate & otherwise, rarely below 30% for more than a few hours.
It is unplugged at night more frequently than plugged in.
It is unplugged at night more frequently than plugged in.
goRt
Active Member
LFP 100%, everything else:
teslamotorsclub.com
Personally, I sit a 50% and then add 1/2 of tomorrow's requirement (I'm retired so only use the car once a week)
Jeff Dahn's recommendation on long term battery preservation
I decided to do a video on this as it's a fairly common question I've come across and hard not to get several different answers. So, I reached out to Jeff Dahn (Tesla Industrial Research Chair and Professor of Physics and Atmospheric Science at the University of Dalhousie in Nova Scotia). I...
teslamotorsclub.com
Personally, I sit a 50% and then add 1/2 of tomorrow's requirement (I'm retired so only use the car once a week)
kelvin 660
White SR+ with LFP battery
I've got a 55 kWh LFP car and I only charge it when it's down in the 50% region. That normally happens every third day. Then Octopus GO will charge it back to 100% within the 4 hour window. I thought about only charging to 90% and 100% once a week (as per Tesla recommendation) but it's too much hassle...
Similar threads
