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2024 Kia EV9 GT-Line — how are you estimating real battery degradation?

HybridNomadCommunity StarterMar 18, 20262024 Kia EV9 GT-LineNew York
2024 Kia EV9 GT-Line, about 4,800 miles. 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, service-mode values, repeated range tests? I'd rather test this logically than start replacing parts.
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15 replies

EVDetailer7Community StarterCommunity StarterMar 18, 2026permalink
Get the messy numbers in writing first. Ask for out-the-door on the 2024 Kia EV9 with fees, add-ons, and rate on separate lines. If they balk, that's your answer. On “line — how are you estimating real,” that was the fork that mattered for me. Parts cannon is a personality type I try to avoid. I screenshotted the quote for later.
MileageWrench30Community StarterCommunity StarterMar 18, 2026permalink
Quick add on that: GAP, paint, and nitrogen are optional until you run the 2024 Kia EV9 numbers without them. Do that before you talk monthly again. Happy to compare notes if your setup is different. Not trying to scare you — just skip the expensive first guess. Sleeping on the number either way.
HybridNomadCommunity StarterCommunity StarterMar 18, 2026permalink
OP here. Still looking, but I'm waiting on inspection notes before I send money on the 2024 Kia EV9. Going to compare one more dealer before I decide.
CleanDadCommunity StarterCommunity StarterMar 18, 2026permalink
I'd want competing paper, not competing stories. GAP, paint, and nitrogen are optional until you run the 2024 Kia EV9 numbers without them. If they balk, that's your answer. Stop there until you know. Sleeping on the number either way.
HybridNomadCommunity StarterCommunity StarterMar 19, 2026permalink
Coming back with numbers — insurance in New York changed the 2024 Kia EV9 comparison more than the sale price did. Calling insurance in the morning before I reply to the desk.
MileageWrench30Community StarterCommunity StarterMar 20, 2026permalink
Not convinced that's the whole story. If one piece looks too good on the 2024 Kia EV9, hunt doc fees, accessories, and the APR next. Screenshot the worksheet if you can. Happy to compare notes if your setup is different. Not wiring anything in the meantime.
GarageDetailerCommunity StarterCommunity StarterMar 19, 2026permalink
I'd slow the salesperson down here. If they're pushing term length to shrink the payment, the 2024 Kia EV9 price probably got worse. That's the part that actually changes the decision. Parts cannon is a personality type I try to avoid. Not wiring anything in the meantime.
V8Geek89Community StarterCommunity StarterMar 19, 2026permalink
I hear you, though I'd still want a second check. A written buyer’s order on the 2024 Kia EV9 is worth more than any verbal “we’ll make it work.” Do that before you talk monthly again. On “line — how are you estimating real,” that was the fork that mattered for me. I'd want that in writing, not as a promise. If GAP is bundled I'm making them unbundle it.
EVFan4Community StarterCommunity StarterMar 19, 2026permalink
Get the messy numbers in writing first. Ask for out-the-door on the 2024 Kia EV9 with fees, add-ons, and rate on separate lines. I'd rather lose the car than buy a foggy deal. On “line — how are you estimating real,” that was the fork that mattered for me. Monthly payment math is how wallets disappear. Climate here is different, so treat that as a local data point. That's my plan before I call anyone.
DailyDadCommunity StarterCommunity StarterMar 19, 2026permalink
If I were shopping this, 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. Not gospel, but it saved me a headache. I've seen both outcomes, which is why I'd test instead of assume. If they only talk monthly I'm walking.
PistonTunerCommunity StarterCommunity StarterMar 19, 2026permalink
The trap is a pretty payment hiding a worse car price. If they're pushing term length to shrink the payment, the 2024 Kia EV9 price probably got worse. Then the comparison gets honest. This is from a 2024 Kia EV9 in New York with 4,800 miles. Post the numbers (or the code) and people can get more specific. Doing the boring step first on purpose.
HybridNomadCommunity StarterCommunity StarterMar 19, 2026permalink
Walked a dealership this week on the 2024 Kia EV9 (4,800 miles) and the doc fee was the tell. Going to re-read the worksheet tonight.
TrailRoadie70Community StarterCommunity StarterMar 19, 2026permalink
Treat this like a math problem, not a vibe. Keep sale price, trade, and financing split on the 2024 Kia EV9 so a “good payment” cannot bury a worse deal. I'd rather lose the car than buy a foggy deal. Did the worksheet show tax yet? I'd sleep better after that step, even if it finds nothing. This is the version I'd tell a friend.
DailyDadCommunity StarterCommunity StarterMar 19, 2026permalink
Compare apples to apples or you'll get spun. GAP, paint, and nitrogen are optional until you run the 2024 Kia EV9 numbers without them. I'd rather lose the car than buy a foggy deal. Take it or leave it — that's what I'd do. If this is nothing, great. I want that in data.
HybridNomadCommunity StarterCommunity StarterMar 19, 2026permalink
Coming back with numbers — insurance in New York changed the 2024 Kia EV9 comparison more than the sale price did. If the title is messy I'm out, full stop.
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