2023 Rivian R1T — fast charging tapers earlier than it used to — Connecticut owner
2023 Rivian R1T Quad-Motor, about 5,500 miles. On comparable road trips the charge rate now starts tapering sooner. I am trying to separate charger sharing, ba…
EV & hybrid
Anyone else: How are you estimating real battery degradation?
2025 Lucid Air Pure, about 1,200 miles. Dash range changes with temperature and driving, so I'm looking for a better way to judge battery health. What data do…
2019 Mazda Mazda3 — no crank with full dash power, then it starts later
Twice I have had full lights and accessories but no crank. After waiting a few minutes it starts normally. Battery terminals look clean. What would you want to…
2025 Porsche Macan — fast charging tapers earlier than it used to — Brooklyn owner
This started as a small annoyance and I finally decided to track it down. 2025 Porsche Macan Electric 4S, about 19,500 miles. On comparable road trips the char…
RoadTripPilot788Community StarterJul 3, 20262025 Porsche Macan Electric 4SBrooklyn10 replies0 helpful
2022 Volvo XC90 Recharge — cleaning the hybrid battery cooling fan — worth doing preventively?
Car is used in a dusty environment and has pets in it regularly. I've read about battery cooling fans getting dirty. Is inspecting/cleaning it a reasonable pre…
2024 Rivian R1S Dual-Motor — low-voltage battery warning after software update
A software update finished overnight and this morning I got a low-voltage battery warning. Main battery is charged. Before scheduling service, is there anythin…
Gen 3 Prius rough cold start plus slow coolant loss
2013 Toyota Prius Three, about 151,000 miles. Older Prius has developed a rough shake for a few seconds on some cold starts and the coolant level seems to be d…
2004 Toyota Land Cruiser — no crank with full dash power, then it starts later
2004 Toyota Land Cruiser, about 209,000 miles. Twice I have had full lights and accessories but no crank. After waiting a few minutes it starts normally. Batte…
2022 Tesla Model 3 — fast charging tapers earlier than it used to — Atlanta owner
On comparable road trips the charge rate now starts tapering sooner. I am trying to separate charger sharing, battery temperature, software changes and actual…
2024 Rivian R1S — fast charging tapers earlier than it used to — second opinion before I spend money
On comparable road trips the charge rate now starts tapering sooner. I am trying to separate charger sharing, battery temperature, software changes and actual…
2025 Lucid Air Pure — fast charging slows down earlier than it used to
2025 Lucid Air Pure, about 118,000 miles. On road trips the car used to hold a higher charge rate longer. Now it starts tapering sooner even when the pack is w…
2024 Kia EV9 GT-Line — apartment charging without a dedicated garage outlet
2024 Kia EV9 GT-Line, about 14,500 miles. I can charge at work sometimes but not at home. For people living in apartments, what combination of public charging,…
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…
2023 Rivian R1T Quad-Motor — how are you estimating real battery degradation?
2023 Rivian R1T Quad-Motor, about 151,000 miles. Dash range changes with temperature and driving, so I'm looking for a better way to judge battery health. What…
1999 Toyota 4Runner — 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…
RustBeltDaily757Community StarterJun 22, 20261999 Toyota 4Runner SR5Washington DC23 replies0 helpful
2025 Honda Civic — hybrid fuel economy dropped with no warning light — Northern Virginia owner
2025 Honda Civic Sport Touring Hybrid, about 19,500 miles. Same commute and driver, but average MPG is down noticeably. Tires are properly inflated. What hybri…
ColdStartDIYer320Community StarterJun 24, 20262025 Honda Civic Sport Touring HybridNorthern Virginia1 reply0 helpful
2022 Mercedes-Benz GLE — no crank with full dash power, then it starts later
2022 Mercedes-Benz GLE 350 4MATIC, about 23,000 miles. Twice I have had full lights and accessories but no crank. After waiting a few minutes it starts normall…
2024 BMW i4 — eV has plenty of main battery but shows a 12V warning — second opinion before I spend money
2024 BMW i4 eDrive40, about 23,500 miles. Traction battery is charged, but a low-voltage warning appeared after the car sat overnight. I know the small battery…
Rivian 12V warning: drive to service or request mobile help?
Got a 12V-related service warning and the truck otherwise wakes and drives normally. For people who've dealt with low-voltage issues, did you risk driving to s…
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…