Ford F-150 Lightning VS Hyundai Ioniq 5
Verdict DROP IT DROP IT
The Reality The backup-power feature itself is real and independently confirmed by Ford's own support documentation and multiple outlets. But NHTSA's recall database shows the exact battery pack that feature depends on was the subject of a real fire-risk recall for the 2023 model year: the high-voltage battery pack may short-circuit when fully charged or nearly fully charged -- which is precisely the state a homeowner would keep it in to be ready for an outage. A second, unrelated recall covers a missing solder joint that can disable the windshield defroster. NHTSA lists 0 complaints for the 2023 F-150 Lightning specifically, consistent with these being proactive manufacturer recalls rather than owner-reported failures. Independent charge-curve testing backs up the 18-minute claim under good conditions on a properly working 150-350kW charger. But NHTSA's recall and complaint data tell a more serious parallel story: the 2023 Ioniq 5 has 386 complaints on file -- the highest of any vehicle checked in this comparison -- and 4 recalls, two of which are genuinely severe: a rear driveshaft that may have been improperly heat-treated and can break under load, and, separately, high-voltage battery cells with misaligned electrodes 'which can lead to a fire while parked or driving.' A breakdown of the complaint categories shows 271 filed under Electrical System, 72 under Power Train, and 67 under Fuel/Propulsion System (a single complaint can span multiple categories).
SHORT ANSWER
Ford F-150 Lightning: Ford's home-backup-power feature genuinely works, but the 2023 F-150 Lightning's high-voltage battery pack was recalled by NHTSA for a real fire risk specifically when fully or nearly fully charged -- the exact charge state the backup feature depends on.
Hyundai Ioniq 5: Hyundai's 18-minute fast-charging claim for the Ioniq 5 is independently verified accurate, but that headline spec sits alongside the highest NHTSA complaint count (386) of any vehicle in this comparison and a real battery-fire-risk recall.