Power Loss

[DrPig2007]

I bought a S75 las tweek. Last night , i charged it to 80%, drove home and parked it over night.This morning the vehicle is at 75%. Why is there 5% power loss? Is such drastic power loss normal?

 

[scottm]

Not sure of the newest cars, but older ones will easily lose 2 or 3% overnight. Search "vampire drain"

It feeds all the electronics that are pretty much running non-stop, even though the car is parked and locked.

 

[jdw]

If you turn "Energy Saving" on and "Always Connected" off and don't have any open apps pinging the car, it will sleep and use very little energy. Otherwise, the car will stay awake and you will lose 3-4% a day.

The only downside to the above setting is that it can take up to a minute to connect to the car with the Tesla app when the car is asleep.

 

[alc]

I just posted about overnight charge loss as well. I'm seeing 3-4 miles overnight, 5-7 mile loss for 24 hours. Temperate climate (for now). 5% seems like a lot.

 

[scottm]

I prevent the loss by putting a Ctek battery minder on the 12v battery while parked in my garage. 0% loss overnight.

The Ctek pulls 21 Watts continuously from the wall feeding the parasitic loads of a parked car.

This is the only "charging" I'm doing at home these days... I use UMC at work and other chargers around town for my main juice.