You probably have one with a LFP battery. They have a different chemistry that is cheaper, have a lower energy density, are less powerful, don’t like cold, but

You probably have one with a LFP battery. They have a different chemistry that is cheaper, have a lower energy density, are less powerful, don’t like cold, but that can often be charged to 100%. The reason you need to charge it to 100% so often too is that it’s the voltage on a LFP battery is all over the place and the battery management system (BMS) has a hard time to keep track of the remaining capacity. Those system usually rely on the voltage but they can’t on this kind of battery. So charging to 100% will let the car know an accurate battery state of charge: full. I have a model y with a classic LG lithium battery and I almost never charge to 100% and the car is discouraging charging that high in its user interface. https://en.m.wikipedia.org/wiki/Lithium_iron_phosphate_battery https://en.m.wikipedia.org/wiki/Lithium_iron_phosphate_batte...