E19 | 110V - 120V Home Charging - How Long?!? (Tesla Model Y)

Stopping by my parents for several weeks along my journey across America with no 220V-240V/Level 2 or Superchargers anywhere in the area. So let’s find out what it’s like to charge at 110V-120V and more importantly how long it takes!

If you’re interested in how many miles can be charged give a certain amount of time, just take my kWh readings and multiply them by 3.1 miles (5 km) which is the average range I’ve been getting on my 4,500 mile drive (7,242 km) across the US so far, most of which has been done at highway speeds between 65 to 75 MPH (105 to 120). Enjoy!

[MrSnowmanK]

The video we all needed but didn't know we did. LoL . Thank you!

[bonniemackinnon]

Great job! Well explained. Thanks for sharing your efforts with us. It's helpful!

[walterp]

Tesla newbie so watching a lot of yt.
Great video. Helpful. Easy to watch

[HBGP-]

I know this is old video but thanks. It helps me a lot

[Hogger]

You got the message because of the input voltage of 113v - that is a 7 volt drop from the nominal 120 that should be there.

[brianh]

Good video. You generally want to avoid extension cords, if at all possible. First, if not rated correctly, they can cause additional heat and fires. Secondly, the longer the extension cord you use, the more resistance you create, thus reducing the current supply to the charger. Go directly into the wall when you can. 12/12 means you are getting 12 amps, the max of a NEMA 5-15 outlet, which I assume you're using. The mobile connector does max out at 32 amps, even with a NEMA 14-50 (240 V).

[joe]

Your regular household outlet usually has a circuit breaker rated 15A. The mobile charger knows which adapter you have plugged in and will limit the juice it pulls automatically. In this case, 12A is max it allows, and the first number is how much you’re actually pulling. So seeing 9/12A means pulling 9, out of 12 max for that circuit type. You can also see the voltage, which should be somewhere around 110-120V no matter how much power your using. Interestingly I think the Tesla can detect if you have a really long extension cord plugged in and it’ll reduce the current it pulls based on voltage drop on the line.

[gersongarciagonell]

Hi thanks for that experiment it is crazy, but that hit the nail of some peoples question!

[lasted]

How are you getting 12 I have the same set up my v say 107-108 even with a 12 gauge extension cord it starts off at 117 then drops to 105v

[captpeady]

Just got my Model Y so doing some #s: 12a x 112v =1.344kw x $0.11 kwh (city rate) / 4mph = $0.03696 /mile.
Charge at Son's house with 240v in the country: 28a x 240v=6.72kw x $0.143 (Duke) /26mph = $0.03696 /mile.
Nikola Tesla quoted about the power of 369 being key to the universe.

[voltspc]

The magic 4% is your bms saying “oh crap we underestimated the charge of this battery, it’s got more range in it”

[voltspc]

Just to explain the whole extension cord thing a little bit better, you need an extension cord that is able to take your amperage that you’re trying to send through the cord, so basically when you go to the hardware store you just have to look for a cord that is rated for a 12 amp constant load or whatever your charging at, Your breaker won’t trip if your cord is wrong but it still would be a very big fire hazard, so make sure your extension cords are correct before doing anything

[EVMANVSGAS]

They sell adapters to use the dryer plug at least you can get 30A 240v

[PeterGregg]

You caused me to do some research for charging in a similar circumstance and some of the info I found was really cool! Amazon has a 100 foot yellow extension cord that is about $160 and it is a 20 amp 10 gauge cable. That's the kind that has one vertical plug and one horizontal plug plus the ground. It plugs into a 20amp receptical instead of the normal 15 amp house plug. If a house has any 20 amp recepticals, usually in the bathroom, kitchen and garage you can buy a Tesla 5-20 adapter and it ups the charge rate by 2 or more mph. Overnight that's a pretty nice. The 10 gauge wire in the extension cord is overkill but it gets rid of the slowdown message and the electric flow doesn't heat up the wire or the plug.
I am also looking into an overkill 220 dryer extension cord to buy to do the same thing at grandparents place but haven't found the right one yet.
Thanks for a great video 👍👍👍

[ekultaylor]

The magic 4% is likely a BMS (battery management system) miscalibration due to lots of supercharging in quick succession. The BMS can get a little off with lots of quick charge/discharge cycles. It will readjust itself when charged a little slower (or allowed to sit) as you saw with the 15 --> 17 jump. It's not usually out by more than a few percent, but that's enough to drive quite a distance as you saw.

[suresh_elonbro]

Rough math. 12A* 110v = 1.32 kw so 75 /1.32 = 57 hr of charging. 90% efficiency = 57/.9=63 hrs

[FSEVENMAN]

Hey Daniel I don't know the situation at your folk's house and I know this video's 4 months old but always keep in mind if you could back into the garage near the door into the house I believe that's closest to the laundry Room and behind the dryer there's almost always a nema 1450, just a little FYI it sure beats the 110.... your videos are great. 😊

[fredsalter]

You remind me of Cypher from The Matrix :-)

[BitJam]

In order to get accurate readings near 0% and 100% you need to nearly fully discharge and fully charge the car. Kim Java has a good video about this. BTW I got a blue/white model Y like yours last week.

[KiRiTO]

Looks like your parents have NEMA 5-20 plugs so if you get the plug adapter from tesla you could charge at 16A instead of 12