[mrmistoffelees]

Phantom drain on EVs is very model dependant, I believe on a Tesla with sentry mode etc you can expect to see perhaps a decrease of a couple of percent every couple of days

I’ve had both my taycan and my wife’s rsq8 parked at the airport and come back after two or three weeks with zero loss to the battery

Some things you should consider

1. The quoted range ? Forget it it’s all dependant on your driving style
2. Cold weather ? Knock 20% off the quoted range
3. Many manufacturers advise to charge to 80% capacity for day to day use only charging to 100% when you’re going on a long journey
4. If you’re buying used make sure you get a battery health report , repeated rapid DC charging will over time cause the battery to degrade quicker

So for example our very first EV was an Audi q4 40 sportback

Quoted range 312 miles at 100%
Charges to 80% during summer approx: 249 miles range
Charge to 80% during winter approx:205’miles range

Driving round town you’ll can use regen to add charge back on motorways you need to be using adaptive cruise control if available.

An EV with a heatpump will also help