From Plug and Play EV.
As happy owners of a 2022 Hyundai IONIQ 5 AWD, the only gap in our experience has been the lack of battery preconditioning en route to fast chargers. As temperatures drop below 60°F / 15.5°C, so do our DC fast charge rates on an EV where a primary selling point is its 800V architecture and up to 240kW charging (10-80% in 18 minutes). A cold battery pack is the cause, and battery pre-conditioning is the answer… except AWD models shipped before around June 2022 didn’t come with that feature.
*** Enter service bulletin T9QEV (22-01-094H) ***
Speak these powerful alphanumerics to your Hyundai dealer and they should (hopefully) be able to update the car’s firmware to switch the nearly useless "Winter Mode" to the long-awaited "Battery Conditioning Mode".
This test takes us briefly through the before and after of an install (which took around two hours), shows the impact of a cold-soaked battery pack with a nearby Electrify America session, then heads just north of Boston Logan Airport to try out a new EVgo location (and the Autocharge+ function) with the first 350kW chargers in Greater Boston. Watch the whole thing to learn more about the IONIQ 5’s battery preconditioning or use the chapters below to skip straight to our results.
0:00 – Start
0:23 – Intro
1:03 – Installation (Winter Mode vs. Battery Conditioning
3:06 – Level Set on Cold Park (Electrify America)
7:04 – Testing Conditioned Pack (EVgo/Autocharge+)
16:08 – Summary and Session Comparison
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* Big thanks to Jeff, Tom, Luis, Dan, Bob, Dave, and Brian for keeping the coffee flowing this past year! *
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