Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Why is Level 2 charging more than 2x as fast as level 1?

rmay635703 · 05-30-2022, 10:03 PM

Most of this is due to unfortunate side effects of lawsuits and legislation specific to HK & USA

Certain EVs will charge up to 30 amps on 110vac but most override the EVSE signalling for high speed L1 giving you artificial 8 or 12 amp limits to limit to possiblity of fire damage to worn and cheap outlets

Outside the leaf with 30amp 110vac RV compatibility L2 has speeds up to 240x72amps sadly few onboard chargers ramp that high

Summary

Portable L1 (typical) 6-12 amps @ 110vac
660-1440 watts

Leaf 110vac EVSE up to 30 amps @ 110vac
3.3kw

L2 (USA) 10-72 amps (max) at 208-240VAC
2.08 - 17.28 kw

The US for lack of standardization does have lots of possibilities if the onboard charger supports

Always disappointed me that few EVs support 110vac at rates higher than 12 amps

05-30-2022, 10:03 PM	#9 (permalink)
rmay635703 home of the odd vehicles Join Date: Jun 2008 Location: Somewhere in WI Posts: 3,891 Silver - '10 Chevy Cobalt XFE Thanks: 506 Thanked 867 Times in 654 Posts	Most of this is due to unfortunate side effects of lawsuits and legislation specific to HK & USA Certain EVs will charge up to 30 amps on 110vac but most override the EVSE signalling for high speed L1 giving you artificial 8 or 12 amp limits to limit to possiblity of fire damage to worn and cheap outlets Outside the leaf with 30amp 110vac RV compatibility L2 has speeds up to 240x72amps sadly few onboard chargers ramp that high Summary Portable L1 (typical) 6-12 amps @ 110vac 660-1440 watts Leaf 110vac EVSE up to 30 amps @ 110vac 3.3kw L2 (USA) 10-72 amps (max) at 208-240VAC 2.08 - 17.28 kw The US for lack of standardization does have lots of possibilities if the onboard charger supports Always disappointed me that few EVs support 110vac at rates higher than 12 amps Last edited by rmay635703; 06-01-2022 at 03:38 PM..