Tesla Motors Club
I quite often have to leave my long range model 3 outdoors for a week of two at a time. Until recently, the loss rate due to quiescent current draw (aka vampire drain) has been pretty much 1% per day or even slightly more. This was not a real problem for me; I would typically park at 60% and come back to about 44% two weeks later.
However, here is the interesting thing: this seems to have changed significantly. In July, I was parked outdoors (with a cover on the car and not plugged in) and I found that the state of charge only dropped about 3% over a 10 day period. On July 8 a screen pic shows 44%, and on July 18 a screen pic shows 41%. I think this is a reliable measurement. So that is only about 3%, or 2.2 kwh over 10 days, which is about 0.3% per day and about 220 Watt-hours per day. I am pretty thrilled to have the best battery in the world and a "vampire drain" about 3 times less than before.
Are other people finding this to be the case? Was this change associated with a particular update? Any thoughts on what is different in terms of BMS, 12 volt charging, etc? Which systems are using less power...?
However, here is the interesting thing: this seems to have changed significantly. In July, I was parked outdoors (with a cover on the car and not plugged in) and I found that the state of charge only dropped about 3% over a 10 day period. On July 8 a screen pic shows 44%, and on July 18 a screen pic shows 41%. I think this is a reliable measurement. So that is only about 3%, or 2.2 kwh over 10 days, which is about 0.3% per day and about 220 Watt-hours per day. I am pretty thrilled to have the best battery in the world and a "vampire drain" about 3 times less than before.
Are other people finding this to be the case? Was this change associated with a particular update? Any thoughts on what is different in terms of BMS, 12 volt charging, etc? Which systems are using less power...?