Twin Chargers and the Super Charger Stations

Twin Chargers and the Super Charger Stations

Do the Twin Charges increase the rate/speed by which you can charge at a Supercharger? I was told by the Product Specialist they did not, but my brother's Product Specialist in Colorado is saying you must get the Twin Chargers to use the Supercharger and get the 45 minute charge. Otherwise, he told my brother with a Single Charger it would take up to two hours for a full charge at a SuperCharge Station.

I would call my delivery specialist but it's after hours now and I just found out about this.


Mike C | 06. Juni 2013

No, you don't. Twin chargers help with the HPWC, not the Superchargers.

mrspaghetti | 06. Juni 2013

Twin chargers have nothing to do with Supercharging.

eddiemoy | 06. Juni 2013

supercharging bypasses the onboard single/twin chargers.

bobrode | 06. Juni 2013

Thank you!!

Tâm | 06. Juni 2013

Get the information from the horse's mouth, not relayed information from your but my brother's.

hanker777 | 06. Juni 2013

Twin Chargers only speed up the charging process when you have them AND have the High Power Wall Connector option installed in your home charging location..
Here is a cut/past from the Tesla Options listings

Twin Chargers:
Twin 10 kW onboard chargers (20 kW total) allow owners to take advantage of high amperage charging equipment, up to 80 amps. Twin Chargers must be configured during the build process. Without them, the High Power Wall Connector will charge at a maximum rate of 31 miles of range per hour of charge instead of our industry leading 62 miles of range per hour.

Supercharging: Does not require Twin Chargers. It doesn't use the on the onboard charger or twin chargers but supplies high voltage DC current straight to the battery bank.

So, unless you want to charge up faster than 31 miles per hour charging rate at home then twin chargers and the high power wall connector would be required. These options give you up to 62 miles per hour charge rate. Most people will charge up over night and that means you could get from 0 to a full charge in about 9 hrs. using a single charger and the standard 240 volt NEMA 14-50 outlet.

jat | 06. Juni 2013

Twin chargers are needed for any AC charging above 40A, including HPWC or J1772 chargers that support higher currents. Supercharging is DC and is unrelated.

AmpedRealtor | 06. Juni 2013

@ bobrode,

I am ordering the twin chargers even though I'll be using a Nema 14-15 outlet that won't take advantage of it. I read elsewhere that at some point down the road, non-Tesla charging stations - the vast majority of which are 40 Amp or less - may get upgraded to 80 Amp service. If that happens, those of us with twin chargers will be able to utilize the additional power to charge in half the time. Of course the charge rate cannot compare to that of a Tesla supercharger, but it will vastly increase your options in a few years.

Roamer@AZ USA | 24. September 2013

Getting ready to install my HPWC. I have been charging with a 50 amp NEMA 14-50 plug.

I charge to 80% unless I need the range. Then I run to full charge. About once a week.

Trying to find out if Twin Charging at 80 amps to 80% is harder on the batteries than using the 40 amp single charger rate. I seldom need the higher rate/speed of charge but have the power available and the charger so plan to hook it up.

Will be adding a second car in November and have the power available to run both at the max setting. Just want to be nice to my batteries so they will be nice to me.

Jolinar | 24. September 2013

heh, you have some serious connection to the grid...

tes-s | 24. September 2013

I don't think charging at 40 amps (10kW) or 80 amps (20kW) makes any difference to the batteries. If it did, wouldn't a supercharger at 100kW be a problem?

Charging at 40 amps you may have slightly less energy loss through heat.

jat | 24. September 2013

All things equal, charging slower is better for the batteries. However, it is unlikely that you would notice any difference in the longevity of the battery between 40A and 80A.