SLOW CHARGING EVS NEED FAST CHARGERS TOO? WHY SOME ULTIUM EVS WILL BE HOGGING THE 350S

EV Channels Review

This video delves into the complexities of DC fast charging, specifically highlighting why certain EVs, like the Chevrolet Blazer EV, Equinox EV, Cadillac Optiq, and Honda Prologue, struggle to utilize the full potential of high-power 350 kW chargers. The core issue identified is the lower voltage architecture (around 290-355V) of these Ultium-based vehicles, which limits their charging speed even when connected to a 150 kW or 350 kW station. The reviewer explains the voltage-current relationship, illustrating that while these stations can deliver high amperage, the vehicle's lower voltage capacity restricts the power intake, resulting in significantly longer charging times (up to 28 minutes longer from 10% to 80% compared to a 350 kW station). The video contrasts this with 800V architectures found in other EVs, which can leverage higher voltages for faster charging. The reviewer advocates for better charging etiquette and suggests that charging networks could potentially guide lower-voltage EVs to appropriate stalls to optimize charger availability.