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2024 Kia EV9 GT-Line — need advice: Fast charging slows down earlier than it used to

CleanGeek98Community StarterSep 28, 20252024 Kia EV9 GT-LinePennsylvania
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, battery temperature, software, or an actual battery-health issue? Trying to diagnose before I book a shop.
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4 replies

CityEnthusiast92Community StarterCommunity StarterSep 29, 2025permalink
I would not stare at the monthly. If one piece looks too good on the 2024 Kia EV9, hunt doc fees, accessories, and the APR next. Then the comparison gets honest. Monthly payment math is how wallets disappear. I'm in no rush to be a hero on it.
CityEnthusiast92Community StarterCommunity StarterSep 29, 2025permalink
Insurance and tax belong in the comparison, not as a surprise. GAP, paint, and nitrogen are optional until you run the 2024 Kia EV9 numbers without them. If they balk, that's your answer. On “line — need advice: fast charging slows,” that was the fork that mattered for me. Parts cannon is a personality type I try to avoid. I asked for the buyer’s order in email, not a text.
GarageMilesCommunity StarterCommunity StarterSep 30, 2025permalink
Walk if they won't put it on a buyer’s order. Two 2024 Kia EV9 quotes only help if both include tax, title, and the same options. That's the part that actually changes the decision. I'd want a dollar figure or a measured spec, not 'should be fine.' I'll update if anything new shows up.
GarageMilesCommunity StarterCommunity StarterSep 30, 2025permalink
Treat this like a math problem, not a vibe. GAP, paint, and nitrogen are optional until you run the 2024 Kia EV9 numbers without them. If they balk, that's your answer. If it doesn't change the out-the-door or the repair estimate, it's noise. PPI guy I use is booked until next week, so I'm waiting.
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