There's nothing incorrect about OP referring to DC quick charging as "Level 3". CARB classified the levels of charging way back in 2001 (http://www.arb.ca.gov/board/books/010628/01-5-1.pdf
), and under that classification, Level 3 includes any off-board DC charging system that is capable of recharging at least 50% of the capacity of a battery pack in no more than 30 minutes.
Thank you for pointing to this. However, I must say that
- It applies only to California.
- It is a very old document describing usage in the 1990's, at a point when CARB was pushing for a new J1772 standard, but SAE had not yet adopted one.
- Even it says that Level 3 must be able to charge 50% in 10 minutes (not the 30 minutes you thought it was).
Note that this CARB staff recommendation says
SAE Recommended Practices for Conductive Charging (J1772 adopted October 1996) defines Level 3 conductive charging as a direct current connected charging method with an off-board charger at any power level. It does not require or specify the minimum power capacity of a Level 3 charger, and Level 3 chargers may have lower power capacity than Level 2 chargers.
Clearly the SAE has changed that definition, as the chart I pointed to shows. I see indications in more recent reports, like this one
, that CARB is backing away from the Level 1/2/3 terminology. I really don't think we should base our usage on an obviously obsolete document which in turn was based on another obsolete document.