Anyone else: Model Y low-voltage warning before a road trip
2024 Tesla Model Y Long Range, about 96,000 miles. Low-voltage battery warning appeared and I have a trip coming up. Main pack is fine. I don't want to get str…
EV & hybrid
2024 Tesla Model Y — how are owners measuring real battery degradation?
Displayed range moves too much with weather and recent driving to be a useful health metric by itself. What repeatable measurements do you trust for tracking b…
2023 Hyundai Ioniq 5 Limited — anyone else: Fast charging slows down earlier than it used to
On road trips the car used to hold a higher charge rate longer. Now it starts tapering sooner even when the pack is warm. Could this be charger-side variation,…
Question: Cleaning the hybrid battery cooling fan — worth doing preventively?
2025 Honda Civic Sport Touring Hybrid, about 78,000 miles. Car is used in a dusty environment and has pets in it regularly. I've read about battery cooling fan…
TorqueSeller10Community StarterApr 7, 20262025 Honda Civic Sport Touring HybridBay Area6 replies0 helpful
Question: Fast charging slows down earlier than it used to
2024 Rivian R1S Dual-Motor, about 96,000 miles. On road trips the car used to hold a higher charge rate longer. Now it starts tapering sooner even when the pac…
2025 Hyundai Tucson — hybrid fuel economy dropped with no warning light — Brooklyn owner
2025 Hyundai Tucson Hybrid Limited, about 29,500 miles. Same commute and driver, but average MPG is down noticeably. Tires are properly inflated. What hybrid-s…
BoxerShopper534Community StarterApr 6, 20262025 Hyundai Tucson Hybrid LimitedBrooklyn18 replies0 helpful
2013 Toyota Prius — no crank with full dash power, then it starts later
2013 Toyota Prius Three, about 183,000 miles. Twice I have had full lights and accessories but no crank. After waiting a few minutes it starts normally. Batter…
2023 Hyundai Ioniq 5 — eV has plenty of main battery but shows a 12V warning — anyone dealt with this recently?
2023 Hyundai Ioniq 5 Limited, about 23,000 miles. Traction battery is charged, but a low-voltage warning appeared after the car sat overnight. I know the small…
GarageDetailer721Community StarterApr 6, 20262023 Hyundai Ioniq 5 LimitedPennsylvania12 replies0 helpful
Anyone else: Fast charging slows down earlier than it used to
On road trips the car used to hold a higher charge rate longer. Now it starts tapering sooner even when the pack is warm. Could this be charger-side variation,…
CleanTraveler50Community StarterApr 6, 20262024 Polestar 2 Long Range Dual MotorPennsylvania1 reply0 helpful
2024 Rivian R1S — rear tires are disappearing faster than expected — Florida owner question
2024 Rivian R1S Dual-Motor, about 9,000 miles. The car is aligned and pressures are correct, but rear tire life is much shorter than my previous gas cars. Has…
2022 Tesla Model 3 Long Range — how are you estimating real battery degradation?
2022 Tesla Model 3 Long Range, about 62,000 miles. Dash range changes with temperature and driving, so I'm looking for a better way to judge battery health. Wh…
BoostedTraveler51Community StarterApr 5, 20262022 Tesla Model 3 Long RangePortland2 replies0 helpful
2022 Volvo XC90 — preventive cleaning of the hybrid battery cooling fan
The car carries pets and sees dusty conditions. Is inspecting or cleaning the battery cooling intake/fan a reasonable preventive job when the service procedure…
2023 Rivian R1T — eV has plenty of main battery but shows a 12V warning — New Jersey owner question
2023 Rivian R1T Quad-Motor, about 60,000 miles. Traction battery is charged, but a low-voltage warning appeared after the car sat overnight. I know the small b…
2022 Volvo XC90 — no crank with full dash power, then it starts later
This started as a small annoyance and I finally decided to track it down. Twice I have had full lights and accessories but no crank. After waiting a few minute…
2020 Mercedes-Benz E-Class — battery dies after the car sits for a weekend
Battery passes a quick test and charging voltage looks normal, but after two or three days parked the car sometimes will not crank. What is the cleanest parasi…
FlatSixDad488Community StarterMar 31, 20262020 Mercedes-Benz E-Class E450Las Vegas8 replies0 helpful
2024 Tesla Model Y Long Range — anyone else: How are you estimating real battery degradation?
Dash range changes with temperature and driving, so I'm looking for a better way to judge battery health. What data do you trust—usable kWh, charging energy, s…
2008 Honda Accord — battery dies after the car sits for a weekend
Battery passes a quick test and charging voltage looks normal, but after two or three days parked the car sometimes will not crank. What is the cleanest parasi…
2021 Toyota Highlander — battery dies after the car sits for a weekend
2021 Toyota Highlander XLE, about 59,500 miles. Battery passes a quick test and charging voltage looks normal, but after two or three days parked the car somet…
2025 Hyundai Tucson — preventive cleaning of the hybrid battery cooling fan
The car carries pets and sees dusty conditions. Is inspecting or cleaning the battery cooling intake/fan a reasonable preventive job when the service procedure…
HighwayPilot273Community StarterMar 28, 20262025 Hyundai Tucson Hybrid LimitedMiami2 replies0 helpful
Low-voltage battery warning after software update
2023 Rivian R1T Quad-Motor, about 151,000 miles. A software update finished overnight and this morning I got a low-voltage battery warning. Main battery is cha…