Two weeks ago, I forgot my mobile charger on a trip up to Rogers City, where I charge with the same type of plug I have in my own garage. After 50 minutes on the road I turned, drove home to pick up the charger, and then had to stop in Bay City to supercharge because I’d already used over 100 miles of range. As I thought about it later that day, since the weather isn’t freezing anymore, I could have made it to my parents’ place with enough range to take a different route home, and supercharge in Gaylord.
Oh well, it was better to be safe than sorry. That night I told myself I wouldn’t let it happen again though, so I ordered a unit I could install in my garage. Then I could keep the mobile charger in the trunk where it belongs.
I also bought a new circuit breaker and wire in order to supply more current (amps) to the unit.
- Tesla Wall Connector – $530
- 25′ of 6/2 Romex Wire – $46
- 60 Amp 2-pole Breaker – $19
- Labor – $0
My total cost was just under $600 since I did the install myself. I’ve read on various Internet forums of people paying anywhere from $300 to over $2,000 for an electrician!
I found a good spot in my garage to mount the plate and ran the wire from there down to the electrical panel.
Installing a breaker and wiring it up can be scary and extremely dangerous, so a lot of people are smart to pay a professional. If you take your time and understand how the system works, it’s quite easy to do though. I turned off the main line and confirmed with a multimeter. The 30 amp 2-pole breaker in the lower right had been used for a hot tub several years ago and wasn’t even wired to anything anymore. I swapped it with the new 60 amp breaker. I closed everything up, turned on the main, flipped the breaker, and voila!
I love when everything works on the first try. Of course, I installed everything to code. 😉
My Model 3 was already charged to 90%, which is as high as you want to charge the car for normal daily driving. I bumped the limit for a quick test and plugged in the car. With a 60 amp breaker, the maximum output of the charging unit is 48 amps, so I was in business. According to Tesla’s documentation, this should charge at a rate up to 44 mi/hr of range. It showed 36 here, but in my experience it takes a few minutes to ramp up and the chargers tend to slow down as they approach the charging limit, so I’ll have to check again after a day of driving. With the mobile charger and a 240 volt 20 amp outlet, my previous charge rate was 14 mi/hr of range, so it’ll be nice to have this boost.
The entire installation took a little over 2 hours since I was working alone and went slow to avoid mistakes.