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Simple rule of thumb: Whenever you need to.I've never needed to charge to 100% yet. I exclusively Supercharge to 90% as it's nearby and my rental townhouse doesn't have L2 charging.
Does only charging to 90% mean the same 10% of cells never get charged? How often should you go to 100% even if you don't need to?
How often should you go to 100% even if you don't need to?
I'm not so sure I buy the theory from that study. While I agree that heat is an enemy of batteries, when on a home charger or destination charger, the battery pack barely gets warm at all. And let's don't forget the cooling that occurs if the algorithms determine that coolant needs to be pumped through the pack. I have never seen that happen on a home / destination charger unless it is super hot outside.In at least one study, a search should ferret it out, it was shown that supercharging actually is better for the battery. The theory is that the battery is hot for less time. I know that we've supercharged quite a bit, and to 100% at least 50 times. Only a few times that I left it overnight, and we still have 259 rated miles when we charged to 100% the other day (accidentally). We're just about to pass 90k miles total, still the original E battery. The point being, don't sweat it! You have an eight year unlimited mile warranty anyway. Enjoy the car!
yes, I agree with that because it is wasted charging; HOWEVER, one will lose regen braking for only the first 3-5 miles on average. If on the freeway, probably makes no difference.If you use regenerative braking, it might not be worth having it not work because the battery is full.
My drive to work is in that range, just local.yes, I agree with that because it is wasted charging; HOWEVER, one will lose regen braking for only the first 3-5 miles on average. If on the freeway, probably makes no difference.
Does only charging to 90% mean the same 10% of cells never get charged? How often should you go to 100% even if you don't need to?
I think once in a while balancing of the cells should be done. And this is done only when being close to 100% SoC.
The problem that might happen without balanced cells is that over time each cell has a different voltage. And when being at an low SoC (close to 0%) some cells might be still above the minimum voltage level while others are already below the minimum voltage level. And the latter one can cause more severe battery degradation. To avoid this unbalanced voltage at low SoC either always avoid low SoC or do balancing once in a while.
I'm not so sure I buy the theory from that study. While I agree that heat is an enemy of batteries, when on a home charger or destination charger, the battery pack barely gets warm at all. And let's don't forget the cooling that occurs if the algorithms determine that coolant needs to be pumped through the pack. I have never seen that happen on a home / destination charger unless it is super hot outside.
Balancing means that cells that are fully charged are not charged any longer and cells that are not fully charged yet are still being charged to bring all cells to the same level, hence the name balancing. So starting balancing at 92% would probably mean:I've seen some videos that show most cell balancing already starts to occur at around 92% SOC.
Balancing means that cells that are fully charged are not charged any longer and cells that are not fully charged yet are still being charged to bring all cells to the same level, hence the name balancing.