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It’s gonna complain at you if you do that and keep shifting the charge limit back up to 100% I. My experience. I’ve regularly charged to 100% (2-3 times a week minimum). Currently seeing 266 miles of the original 272 after 7800 miles. Don’t think based on this thread it makes much difference.I just bought a ‘23 RWD and work from home, so will probably drive it only 50-100 miles per week. My plan is to charge to 100% only once A) charge has dropped below 40% and B) it’s the night before I plan to go somewhere the next day (I always go somewhere on Sundays, for example). At other times, I will probably keep it plugged in, but not charging. This will mean a variable SOC and probably only charging to 100% once or twice a month.
Are you guys actually leaving the charger in when not charging ? Some nights I don’t leave the charger plugged just don’t feel like plugging it in because is that actually even doing anything ?
The manual says there's no advantage in delaying charging your car. Keep your car plugged in.I am an infrequent driver with a LFP M3, I drive around 100-150 miles a week. I charge to 100% once a week and 70% the rest of the days.
Some days I come back home with 55-65% battery and I'm set to charge it to 70% that day. Should I not charge and wait until I run it down to 30-40%, or just charge from 55-65% to 70%? What's the best practice in this case? Is there any benefit to running it down, then charging. Or should I just always be charging, even if I just need to go from 60% to 70%?
I am an infrequent driver with a LFP M3, I drive around 100-150 miles a week. I charge to 100% once a week and 70% the rest of the days.
Some days I come back home with 55-65% battery and I'm set to charge it to 70% that day. Should I not charge and wait until I run it down to 30-40%, or just charge from 55-65% to 70%? What's the best practice in this case? Is there any benefit to running it down, then charging. Or should I just always be charging, even if I just need to go from 60% to 70%?
I would run it down to 30-40% then charge back up to 100%. The benefit is lower average state of charge which will lower calendar degradation. Plus as mentioned, letting it sleep at different state of charges which will improve BMS calibration. Be sure to have sentry & cabin overheat set to off to let it fully sleep.I am also an infrequent driver with a LFP M3.
I drive around 100-150 miles a week. I charge to 100% once a week and 70% the rest of the days.
Some days I come back home with 55-65% battery and I'm set to charge it to 70% that day. Should I not charge and wait until I run it down to 30-40%, or just charge from 55-65% to 70%? What's the best practice in this case? Is there any benefit to running it down, then charging. Or should I just always be charging, even if I just need to go from 60%-70%?
As others have noted, consider letting it sleep at various states of charge for better BMS calibration.I am an infrequent driver with a LFP M3, I drive around 100-150 miles a week. I charge to 100% once a week and 70% the rest of the days.
Some days I come back home with 55-65% battery and I'm set to charge it to 70% that day. Should I not charge and wait until I run it down to 30-40%, or just charge from 55-65% to 70%? What's the best practice in this case? Is there any benefit to running it down, then charging. Or should I just always be charging, even if I just need to go from 60% to 70%?
I’ve been charging to 100% daily. Covered over 3000 miles since early December and seen no effect on the estimated range. Still showing 270This is a good thread. I take delivery of a M3 rwd on February 28th. I , too, will be only using the car occasionally and may only put on 10-50 miles weekly. Then, there will be times where we will take 100-400 mile trips
Has there been a consensus on charging habits?
That is pretty good. LFP is a durable battery. I had a 2109 M3 with NCA battery. I lost 22 miles with only 18,000 miles. I took good care of the battery and hardly ever charged to 100%. Yet I still lost 22 miles in a short time. That is why I bought this M3. No more games.I’ve been charging to 100% daily. Covered over 3000 miles since early December and seen no effect on the estimated range. Still showing 270
That is pretty good. LFP is a durable battery. I had a 2109 M3 with NCA battery. I lost 22 miles with only 18,000 miles. I took good care of the battery and hardly ever charged to 100%. Yet I still lost 22 miles in a short time. That is why I bought this M3. No more games.
Let the SOC go down to 30-40% and charge it back up to 100%. Some rules for me will be:
1. don't charge to 100% unless you drive somewhere.
2. You can have it drop down below 30% on a trip but don't make it a habit.
3. And, most importantly, don't worry too much about it.
This is a good thread. I take delivery of a M3 rwd on February 28th. I , too, will be only using the car occasionally and may only put on 10-50 miles weekly. Then, there will be times where we will take 100-400 mile trips
Has there been a consensus on charging habits?
My 2109 has a dilithium crystal.I had a 2109 M3 with NCA battery
Yes, but when you start driving, the car starting at 100% will take longer to leave the "higher degradation zone" (>70% for LFP, >55% for NCA) than the car starting at a lower state of charge, right?100% is not as bad as people think.
In many cases, 100% is equal to 80 or 90%.
What is wrong with <30% for battery health? Low state of charge is only an issue in terms of the risk of running out while driving, or if parked for so long at a very low state of charge that vampire drain will take it down below 0%.2. You can have it drop down below 30% on a trip but don't make it a habit.
Yes, but what do you think of 100% and sitting the garage? That is, sitting above 90% for 20 days (assuming .5% drop per day).100% is not as bad as people think.