500 miles in and battery shows 2% less miles when charged, normal?

[ucla95]

My battery used to say 279 miles when charged (delivered at 90% limit and didn’t change that). Now it says 274 miles. Have only 525 miles on the car. Is this normal?

 

[ewoodrick]

Chill, breathe, don't worry. And unless you have a long commute, you may want to push the limit down to 80% or lower.

 

[cantdecide]

Yes this is normal.

A period of colder weather will make the car think that the battery has less capacity.
In general capacity lots is more driven be time than miles and is highest in the first few months.

 

[jboy210]

The range will vary over time. It is an estimate based on driving habits and state of charge of the battery. State of charge of the battery is an estimate based on voltage/and or current flow to a sensor. So range is an estimate based on another estimate.

Personally I suggest people switch to percent charge and forget about the range estimate. After a few days you will treat it just like an old time gas gauge.

 

[TexasEV]

The range will vary over time. It is an estimate based on driving habits and state of charge of the battery. State of charge of the battery is an estimate based on voltage/and or current flow to a sensor. So range is an estimate based on another estimate.

OMG why do people keep repeating this incorrect information? Rated range HAS NOTHING TO DO WITH DRIVING HABITS. It’s the EPA rated range. Period. Full stop. Just as it has been the previous 1000 times this has been explained over the years. It’s based on a fixed Wh/mi. Yes state of charge is an estimate as it can’t be measured directly, and that estimate can be more or less accurate depending on how the battery has been charged and discharged lately, but it has nothing to do with your driving habits.

 

[David L]

The range estimate isn't very accurate unless you've recently fully charged (to 100%) and discharged (to 10-20%) the battery. The general consensus is that charging the battery to >90% and letting it sit increases battery degradation, so a full charge/discharge shouldn't be done frequently. And it's best to drive the car immediately after it's done charging.

 

[ratsbew]

The only place in a Model 3 where it will show range based on driving habits is in V9.0 on the trip energy graph when you switch it to projected range.