Why Does My Tesla Lose Charge When Parked. To maximize range its important to watch your driving speed and enable regenerative braking when possible. Your Tesla loses range when parked caused by something called Vampire battery drain or just Vampire drain.

Frequent stop-and-go driving inclement weather and uphill driving put a natural strain on the battery. Hi Folks - ever since the last software update I have noticed that my battery is draining while my car is parked. Do electric cars lose charge when parked.
Your Tesla loses range when parked caused by Vampire battery drain.
This can vary from a few miles per day to quite significant amounts depending on the settings in the car and can be a problem if leaving your car while on holiday. So my monthly usage just for my car is approximately 477 kWh. Your driving behaviors and environment play a big role in achievable range. Because it is doing more than just sitting.

