<>SAN FRANCISCO--Electric vehicle charge times could be as short as
10 minutes using the revised J1772 EV connector spec published by
the Society of Automotive Engineers.
J1772 connector spec originally defined AC Level
1 and AC Level 2 charge levels and specified a conductive charge
coupler and electrical interfaces for AC Level 1 and AC Level 2
charging. The new revision, announced Monday (Oct. 15),
incorporates DC charging, defining DC Level 1 and DC Level 2 charge
levels, charge coupler and electrical interfaces.
Thanks to the addition of DC charging capability, the charging
time can be cut to as short as 10-20 minutes, according to SAE.
standard was developed in cooperation with the European automotive
experts who also adopted and endorsed a combo strategy in their
Complete configurations can be found here. The new spec can be found here: J1772ô:
SAE Electric Vehicle and Plug in Hybrid Electric Vehicle
Conductive Charge Couple.
The charging configuration for DC Level 1 is 200-500V DC, up to
40 kW (80 A), delivering an estimating charging time (with a 20
kW off-board charger) is 22 minutes for a plug-in hybrid and 1.2 hours for a
For DC Level 2, the numbers are 200-500 V DC, up to 100 kW (200
A) with an estimated charge time (45 kW off-board charger) of 10
minutes for a PHEV and 20 minutes for an all-battery vehicle.
Said Gery Kissel, GM Engineering Specialist and SAE J1772 Task
Force Chairman, "We now can offer users of this technology
various charging options in one combined design."<>