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Need help from EV/Tesla owners

Posted on 5/24/21 at 4:41 pm
Posted by Bamajedi
Member since Sep 2017
305 posts
Posted on 5/24/21 at 4:41 pm
Looking at possibly buying an EV in the next year or so and I have some questions.

1. My electric panel in the garage is full of breakers and I have no blanks. Can an electrician add an EV charger without major expense?

2. Will the AC blow cold while sitting in a parking lot for a couple of hours? Does it drain the battery much?

3. Do these cars have the capacity to adequately cool the car when it is 100Degrees outside?

4. How has your maintenance/repair experience been? (ie. No Tesla dealer nearby - who does service?)

5. Have you been able to use the public charges without a fuss? I've seen some car reviews that mentioned crowds or charger not working properly
Posted by Volvagia
Fort Worth
Member since Mar 2006
51958 posts
Posted on 5/25/21 at 12:17 am to
1-you’ll prob need an electrician, both for the bigger box and for the larger main. Not to mention wiring the heavier duty cable.

2/3-cooling is not a problem for these cars. In fact, you can set some of them to run while parked. So it never gets too hot in there. 8 hrs of cooling will cost you less than 25 miles in range. The only HVAC element that will murder your battery are cold temps.
Posted by pongze
IE, SoCal
Member since Nov 2007
1713 posts
Posted on 5/25/21 at 10:40 pm to
1) my electrician was able to combine a few of my breakers into half size breakers (I’ve got no idea what the term may be or even if I’m describing it correctly). Cost depends on your electrician. Mine charged a reasonable hourly for labor and and cost for materials so he was very reasonable.

2. You can run the AC without issue. I’ve done it for 8 hours in Palm Springs (I have a freezer for the car and needed to keep something cold) and yeah probably dropped maybe 20 miles (I know energy would make more sense to some people but I have my car set to show me miles). I had to keep the car on “camp” mode so that the 12V outlet would stay on, but the AC was on as well.

3. Cooling at 100 F outside, yeah no problem. You’ll use more energy obviously so your mileage will be lower.

4. I’m in California so we have Tesla service centers around. If you’re outside of a certain radius from the nearest service center, at least in the past, they’d send a “ranger” (a mobile technician) out to your place. I’d typically get a Tesla loaner although they seem to contract with enterprise out here for loaners now. Experience has been fine for me.

5. Yeah public chargers, it depends. The Tesla supercharger network has really expanded but you may want to check how dense it is where you are. ChargePoint is present in a lot of places and some places have them for free but the charging is slow. Free I’ve mainly seen in Vegas and at a nice mall called South Coast plaza in Orange County. Some hotels let you charge for free if you’re staying there. Yes, sometimes a charger is broken.
Posted by pheroy
Raleigh, NC
Member since Oct 2006
713 posts
Posted on 5/26/21 at 1:49 pm to
Some more input. I have an older S (2014 P85, pre autopilot).

1. It typically costs $300-400 to add a basic 50 amp circuit, then depending on how far to your garage or any other issues it could go up some. I had no space in my panel so had to redo some stuff, and had a long run across the house from panel to garage so for me it was nearly $800 but most people report $300-400.

2. There is a setting in the controls to have the car automatically run AC as needed to keep the interior temp under 105. I keep this setting on, and I've lost under 20 miles range on days in the high 90s on asphalt parking lot.

3. Not an issue.

4. Obviously this varies some. Some people get cars that have more issues that need service. Regular maintenance is definitely less. I've had a handful of minor issues requiring repair at the service center, on a car that was 3 1/2 years old when I acquired it.

5. Tesla chargers are rarely an issue in general but occasionally there will be an individual charger that's out. They have a minimum of 8 chargers at all locations, frequently more, so it's never been a problem on the rare occasion that I've needed to switch spots. The one problem I've had is that for my specific older car they did limit the charge rate which sucks. If you're buying a new one they are much more capable on charging and can use the higher rates of Tesla's newer charging stations. (Up to 250KW as opposed to 120KW.)

For non Tesla charging I've used adapters for several at parking decks, hotels etc. without a problem, it just charges slower. But in those cases the car was parked for hours so it was easy and convenient. The app PlugShare is really helpful for finding chargers.
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