I understand it varies and the Tesla App shows recommended % to charge. However, I read somewhere here that for daily usage of 20%, charge Tesla to max 50-60% to increase battery life.

What do you all do?

Thread Summary:

• 75%: One user sets their charge limit to 75% as a buffer in case they need to travel to the next town over.
• 80%: Some users stick with Tesla’s recommendation of 80%.
• 58% daily: One user charges their Tesla to 58% daily.
• 77%: Another user sets their charge limit to 77%, occasionally charging to 100% for long trips.
• 55%: One user sets their charge limit to 55%.
• 85%: Some users set their charge limit to 85%, splitting the difference between the current recommendation of 80% and the previous 90%.
• 75%: Another user sets their charge limit to 75%, which is enough for their daily driving.
• 60% for daily driving, 80% for smaller trips, and 100% for longer trips: One user has a variable charge limit depending on their driving needs.
• 50%: Some users set their charge limit to 50%.
• 100% every day: One user, who leases their Tesla, charges it to 100% every day.

 

Let's say daily drive usage is 20%, what should be the charge limit set to?

60%

 

About 50% daily, with 100% for long trips.

 

Averaging the 10 examples you give (including the final idiot) results in 71.5%. That'll do.

Or, in other words, it's not terribly important. Don't sit above 90% or below 10% for extended periods and you'll be fine.

 

Changed mine to 60% based on @zroger73 ’s advice, goes along with what you mentioned above as well.

 

You've been busy, @Drake. Good to see.

My low mileage use has me in the 60-70% camp. I've charged to close to 90% for 200 miles and over trips. TeslaFi still nags me to charge to 90% for better characterization. I don't really care...

I like @FRC's simple advice.

 

Found this forum to be incredibly useful as other owners are advising new owners like me

 

8
You never mentioned if you have a Y or a 3.
I stick with Tesla's advice and charge nightly at midnight to 80%, ( Last night it took 2:59 @ 21 amps charge rate to from 61% to 80% ) this way if I have a surprise trip I'm safe and good for 425Kms. But if you have a M3 with a lithium iron phosphate battery it's 100% every night if possible for best battery maintenance. If you have a Y and want your charge readings to be more accurate you will need to charge to 100% at least once a year preferably from a low SOC like 20%, this will help recalibrate the BMS. Make sure you let it finish after hitting 100% it will keep trickle charging for about and hour if your cells weren't balanced to begin with. Once this is done, don't leave it at 100% for long take it out for a little spin until you drop a few percentage, then you are good for an other year.

 

9
I see in your profile you have a Model Y, congratulation, I love mine. Probably has 21700 lithium Ion cells, 4416 of them 46 in parallel with 96 of these in series. A fully charged parallel pack is 4.2 volts X 96 = 403.2 Volts. Tesla rounds it off to 400 Volt. Read somewhere or maybe saw it on Monroe that when the monitor says 100% it isn't and that the maximum voltage allowed was 390 Volts for a bit of headroom protection. But don't quote me on that as it is hearsay. So it would charge to 4.1 volts per cell instead of 4.2 V....

 

9
I see in your profile you have a Model Y, congratulation, I love mine. Probably has 21700 lithium Ion cells, 4416 of them 46 in parallel with 96 of these in series. A fully charged parallel pack is 4.2 volts X 96 = 403.2 Volts. Tesla rounds it off to 400 Volt. Read somewhere or maybe saw it on Monroe that when the monitor says 100% it isn't and that the maximum voltage allowed was 390 Volts for a bit of headroom protection. But don't quote me on that as it is hearsay. So it would charge to 4.1 volts per cell instead of 4.2 V....

Nice one Rub”Y” (I see what you did there 😁), yes, I’ve MY, I used to have it at 80% but recently changed it to 60%, I’m going to see how well it works for me.

Also, updated my profile after looking at yours, updated to include year and version for MY.

 

Just charge it to 80% daily, it's easier than remembering a complex matrix of how much to charge for what kind of day.

 

The best level to charge to is what works for you.

And most of the recommendations are only going to impact range by a few percent and not really impact the life of the battery.

 

I charge to 80% for several reasons:

1. It's what Tesla recommends for NMC battery.
2. I drive 100 miles a day and sometimes more.
3. In case I need to go somewhere farther for emergency or otherwise, I have enough charge.
4. In case there's a power outage, I won't have to worry about charging elsewhere or at a Supercharger.

 

I charge my Y and 3 to 80%. (no LFP battery for me) When to charge varies since I found myself planning for the possible use of the cars, making sure we have >20% when I return home. Superchargers are used when unexpected travel is needed. We usually end up charging the cars at around 25-30%, alternating evenings. It all ends up being once a week for both cars. We don't drive too much. (<300 miles a week between 2 cars?)

What I really want is a home charger that can charge both cars at the same time

 

I believe that 2 wall chargers can be configured to do so.

 

Often home garages have 115v 20 amp receptacles which many people discount as EV unfriendly. But they can charge 50% faster than the typical 15 amp which for some people works as a daily charge.
You need the NEMA 5-20 adapter for the mobile charger.

https://teslamotorsclub.com/tmc/threads/how-much-charging-via-110-120v-20-amp-nema-5-20-outlet.291364/

 

You mean 25% faster right!

 

From what I’ve read many places it charges 7 miles per hour vs 5 miles per hour which is 40% faster Or if your lucky 7.5 miles per hour which is 50%
The nice thing is if you have it in your garage, it costs only the price of the adapter cord which is good to have anyway
YMMV

 

You can't round off one way on one number and the other way on the other.
Math don't lie.

V * I = P
120 volts X 12 amps = 1440 Watts
120 volts X 16 amps = 1920 Watts
1440/1920 =75%

 

Sounds good

 

I still think, to not get yourself in a pickle your best option is a 14-50 plug @ 250V,

this will give you a 32 amp charge rate option. At max 32 amps 240 volts you can charge up to 10%/h or 31 miles per hour. I personally set my charge rate @ 21 amps and it gives me 10% every 1½ hour. So if I'm down 20% it takes from midnight to 3 am. This gives me plenty of time for my driving habits.

 

so that's actually 1/3 faster. (since the 15A[12A] is the baseline)

 

If you use the inverse proportional, yes . 480 is 25% of 1920 and 33% of 1440.

 

It all depends on how much money you want to spend, some options are free some options cost a few dollars and other options cost considerably more.

 

I am charging mine to 70%. It gives me in my daily drive about 230-240 miles of range. Yes, it is city driving.

Almost 11 months of ownership, the battery degradation is still under 1% after almost 10 000 miles. My EPA range : 333 miles.

I love teslafi.com !

 

I have a 2023 M3, my app says to charge it to 100% so that’s what I do.

 

Good luck with that. While you're at it, why not charge it to 110%?

 

He has a LFP battery so yes, he can charge to 100%. No need to be a smarta$$ when you don't know the facts.

 

Free energy! That's where the future is... Look at all the videos on youtube!!!! it's already available!

 

Diode-based FBRs are sooo yesterday. MOSFET versions FTW!

 

Diode-based FBRs are sooo yesterday. MOSFET versions FTW!

If silicon-carbide is good enough for my Tesla, then by golly it's good enough for me!

 

Our daily use is similar to yours, and we find 65% is a good sweet spot.

We also try to charge only with solar and without using our Tesla PowerWalls so as to also extend their life. Our power company limits generation from our solar system to 10 Kw, although our solar array will generate a lot more on a full sun day (ostensibly to protect their transformers from too many people uploading simultaneously.)

If we use the car midday, I will monitor the energy generation rate and the energy consumption rate and adjust the charge rate accordingly. If it were a cloudy day, we drove morning and midday and didn't get home until 4pm (summer), I might reduce the charge rate to as low as 12v and then cut it as we stop producing, hoping the next day will be full or partial sun and then let 'er rip in the late morning, depending upon our projected driving needs for the next day. Not worried if we take off with only a 60% charge.

If I know we're going to need the full 65 (or more), we'll charge on a combo of array, PowerWalls and even allow some grid to go the full 48v from our Tesla charger. But this is rare.

Most common charge setting is somewhere between 24 and 32 volts. This balances well with other "house" draws, occasional clouds, and the 10kw utility imposed limit. If it's a full sun day, I'll often increase the M3's storage to 70%--we're trying to preserve the life of both the M3 and the PowerWalls.

 

Things Tesla doesn’t warn people about in their promotional materials for the products?

We also try to charge only with solar and without using our Tesla PowerWalls so as to also extend their life. Our power company limits generation from our solar system to 10 Kw, although our solar array will generate a lot more on a full sun day (ostensibly to protect their transformers from too many people uploading simultaneously.)