Traveling for 2 weeks, no charging

[widodh]

Charging to 100% then driving the vehicle right away is not that bad because the cells are not held at a high voltage. That's very different than charging to 100% and letting it sit for a week. That's just plain bad advice -- at least according to the science:

I'm sure your Model S battery is fine, but he asked about best practices. So to give him a bad one, then say the best practice advice is "overrated" doesn't really answer his question. And that's aside from the fact that I don't agree it's overrated advice. My 2012 Leaf that we have set to charge to 80%, and only charge to 100% when needed and we drive right away, has only lost one bar in 6 years of daily driving with a much smaller battery pack and no thermal cooling. My early 2014 S has only lost 4%, the majority of which went in the first 6 months.

Thanks for the feedback!

The big difference with a Tesla is the vampire drain. That sucks quite some Watts and thus charge from the battery over the course of two weeks. Tesla says 1% per day, but most of the S and X I know of are draining more per day.

But does Tesla actually charge to 4,2V? I thought they charged to 4,15V or something.

 

[Fiver]

I've gone 21 days unplugged during winter with energy saving off and always connected on. Went from 90% to 45%. For 2 weeks inside in summer you will be fine starting at 90%

 

[jboy210]

Great timing on this question. On vacation and charged our new and first EV MX 75 to 85% before we left figuring it would be OK. Based on the comments it looks like this should be fine.

 

[Solarman004]

Went into settings - > displays didnt see this option?

See attached photo. Both switches are at the bottom of the page under "Power Management."

 

[dethman]

See attached photo. Both switches are at the bottom of the page under "Power Management."

interestingly my MX VIN 101xxx and most updated software, does not have this option. reading the tesla forums, this is noted by a few other owners as well. weird.

 

[Solarman004]

interestingly my MX VIN 101xxx and most updated software, does not have this option. reading the tesla forums, this is noted by a few other owners as well. weird.

That is strange. I wonder if you have the newer MCU2. Mine is an Aug 2016 build MX with the original MCU.
This is a great feature. I'm not sure why it would be removed, unless energy saving mode is now the default and always engaged. When I turn it off, my phantom load increases quite a bit.