What the federal record shows, across both cars
FuelEconomy.gov publishes, for every electric vehicle sold in the US, how long a complete charge takes on 240 volts and how many kilowatt-hours the car consumes per 100 miles. Multiply the consumption figure by the range and you get the energy a full charge draws from the wall; divide by the charge time and you get the average power the car pulled across the session.
The right-hand column is ours, not EPA’s and not Kia’s. It is an average across a complete charge rather than a peak — a car tapers near the top of the pack, so its peak sits above its average — and because EPA measures consumption at the wall it already includes everything lost in the charger, the cable and the car’s own AC-to-DC conversion.
| 2026 trim | EPA 240V charge time | EPA kWh/100 mi | EPA range | Derived average power at the wall |
|---|
| EV6 Standard Range RWD | 6.2 hr | 29.2 | 237 mi | ~11.2 kW |
| EV6 Long Range RWD | 9.0 hr | 29.6 | 319 mi | ~10.5 kW |
| EV6 Long Range AWD (19 in) | 8.8 hr | 31.6 | 295 mi | ~10.6 kW |
| EV6 Long Range AWD (20 in) | 8.9 hr | 34.6 | 270 mi | ~10.5 kW |
| EV6 AWD GT | 8.6 hr | 41.0 | 231 mi | ~11.0 kW |
| EV9 Standard Range RWD | 8.1 hr | 38 | 230 mi | ~10.8 kW |
| EV9 Long Range RWD | 10.7 hr | 38 | 305 mi | ~10.8 kW |
| EV9 Long Range AWD | 10.7 hr | 40 | 283 mi | ~10.6 kW |
| EV9 Long Range AWD GT-Line | 10.5 hr | 41 | 280 mi | ~10.9 kW |
| EV9 GT | 10.8 hr | 43 | 260 mi | ~10.4 kW |
Ten trims, two body styles, a 0.8 kW spread. That is a tighter band than we have found on any other vehicle family on this site, and it has a practical consequence: a 48-amp charger supplies 11.5 kW, which is above every figure in that table.Buy 48 amps and the wall is never the limiting factor on either car. Nothing above 48 amps has anywhere to go — a 50-amp charger needs a 70-amp circuit instead of 60 and delivers the same rate, and an 80-amp charger needs a 100-amp circuit to deliver the same rate again.
What differs between the EV6 and the EV9 is the clock, not the rate
The EV6’s EPA charge times run from 6.2 to 9.0 hours; the EV9’s from 8.1 to 10.8. Same fill rate, bigger tank. That matters in exactly one place: how much the cheaper 40-amp install costs you.
A 40-amp charger supplies 9.6 kW, which sits inside the band above rather than over it. Our arithmetic on EPA’s own figures:
- EV6 Long Range RWD. A complete charge draws roughly 94 kWh at the wall. EPA measures it at 9.0 hours; held to 9.6 kW it would take about 9 hours 50 minutes. Roughly 50 minutes of difference.
- EV9 Long Range RWD. Roughly 116 kWh at the wall. EPA measures it at 10.7 hours; held to 9.6 kW, about 12 hours 5 minutes. Roughly an hour and twenty minutes.
In miles of range per hour of charging: an EV6 Long Range puts back roughly 35 to 38 miles an hour at the rate the records show, and an EV9 Long Range roughly 28 — the EV9 is simply a heavier, less efficient vehicle, which is a range story rather than a charging one.
So the decision is mostly about installation. A 48-amp charger is hardwired on a 60-amp circuit, because the code sizes a continuous load at 125% of the charger’s output. A 40-amp charger can plug into a NEMA 14-50 receptacle on a 50-amp circuit, which many garages already have. Our 40A vs 48A comparison runs the full trade-off, and hardwired vs plug-in covers the install side.
The one number Kia does publish, and what it implies
Buried in a footnote on Kia’s own home-charging accessory is the closest thing Kia gives to a home-charging requirement: “Home installation: 240V charging requires purchase of a Level 2 charger and may not be compatible with all devices and homes. Fastest charge requires activation with a ChargePoint account, plus a 50 A circuit and hardwired installation.”
A 50-amp circuit carrying a continuous load is limited to 40 amps by the same 80% rule. So Kia’s own “fastest charge” setup is a 40-amp charger. That is an inference on our part rather than a Kia statement about the car, and we are flagging it as one — but it is a useful reality check in both directions. It tells you 40 amps is a perfectly respectable answer that the manufacturer itself endorses. And it tells you that going to 48 amps, which is what we recommend, means going one step past what Kia will sell you — worth about 50 minutes on an EV6 and about 80 on an EV9.
Two more things from Kia’s own pages worth knowing before you buy anything. Kia describes its accessory charger as “available with J1772 or NACS connectors and backed by a 3-year limited warranty”, so the NACS version exists if you want the matched part. And Kia lists a “Dual Level 120V / 240V Portable Charging Cable” among the EV9’s features — check whether yours came with one before you buy a portable, because a dual-level cable on a 240-volt outlet may already cover the occasional-use case that pick 5 is for.
The connector, and the one case where it is not simple
Kia states the port plainly for both current cars: NACS, standard, and on the EV6 specifically on the driver’s side rear corner. So picks 1 through 5 here are all NACS units and you can buy with confidence.
The exception is an earlier car. Both nameplates were sold with the CCS1 inlet before the switch, and Kia’s own pages speak only for the current model year, so we are not going to publish a cut-over date we cannot source from Kia. The reliable check takes ten seconds: go look at your charge port. A single small oval socket is NACS. A round socket with a second two-pin section beneath it is CCS1, and its upper round half is the J1772 AC connector — in which case buy the J1772 equivalents instead, which are the larger and generally cheaper half of the market. Our 48-amp roundup covers that side, and J1772 vs NACS explains the transition and which adapters work at a home charger rather than only on DC.
If you own a working J1772 charger already and have just taken delivery of a NACS Kia, the sensible move is an 80-amp J1772-to-NACS AC adapter rather than a new wall unit. It costs a small fraction of a charger.
Where the car parks, and the cable that has to reach it
The EV6’s port is on the driver’s side rear corner, which Kia points out as a convenience at public chargers — and which, at home, decides whether a wall unit at the front of the garage reaches at all. The EV9 is a three-row SUV just under 17 feet long, so the same problem is larger.
Four of the five picks here carry 23 ft or 25 ft of cable. The planning rule we use is to assume about 60% of the rated lengthis usable once the cable routes along a wall, around a corner and down to the port rather than flying straight through the air — so treat a 25 ft cable as a 15-foot reach. Measure the real route with a tape before you choose a mounting spot, and read where to mount an EV charger first: mounting beside the parking space rather than in front of the bumper buys more usable reach than any extra cable. Our long-cable roundup ranks the field on that spec alone.
If it parks outside.Pick 3 is here for that: a cast-metal UL Type 4 case with a published operating range down to −22°F, which is the most specific cold-weather promise any manufacturer in this category puts in writing. Most brands publish an enclosure rating and stop. See best outdoor chargers for the full field, and cold-weather EV charging for what actually changes at the car when it is freezing.
What we did not rank, and why
Kia’s own accessory charger, and the Qmerit install. Kia’s EV6 page says it “has teamed up with Qmerit to offer a convenient home charger installation service”, and the matched charger is sold with a 3-year warranty in either connector. It is not ranked here because every buy link on this site resolves to a retailer we can show a live price for, and this is dealer-and-installer channel. Get the quote anyway and compare it against the hardware prices above plus an electrician — a bundled install is sometimes the better deal, and we would rather you check than assume.
Any onboard-charger rating for either car.Kia does not publish one that we could find, and we are not going to repeat a third-party figure as though it were the manufacturer’s. Every power number on this page is either EPA’s measurement or our labeled arithmetic on top of it.
Any model-year connector cut-over. Same reason. Looking at your own port is more reliable than a date we cannot source.
Chargers above 48 amps. Excluded on the merits, not on price. The table above is the argument.
The verdict
Either car, new electrical work: the EVIQO NACS 48A. 48 amps is above every figure in the EPA table for both nameplates, the native NACS plug means nothing hangs off the car overnight, and the 25 ft cable plus IP66 / NEMA 4 enclosure and ENERGY STAR certification cover an outdoor install and most rebate paperwork. Hardwired on a 60-amp circuit.
Panel already full: the ChargePoint Home Flex NACS. Six published current settings from 16 to 50 amps mean it goes in at whatever circuit you can get today and turns up later. You pay a brand premium for the flexibility and for the best app in the category.
Cold and fully exposed: the Grizzl-E Ultimate 48A.Metal case, UL Type 4, published from −22°F to 122°F, OCPP as well as the maker’s own app. Two honest catches: hardwire-only, and Grizzl-E publishes no ENERGY STAR listing for this model, so check your rebate terms first.
No electrician, and a dryer outlet in the garage: the EVDANCE 24A NACS. 24 amps on a NEMA 14-30 is about 5.8 kW, which on an EV9 Long Range is a roughly 20-hour full charge — so this is not the right primary charger for a big pack you run to empty. It is the right answer for an EV6 driven 40 miles a day by someone who would otherwise be on a 120-volt cord, and it needs no new circuit at all. It is also the only pick here that names its testing lab in a user manual rather than only on a listing, which is why it is here instead of the cheaper no-name alternatives.
And a portable for the trunk: the Lectron 40A NACS.For campgrounds, in-laws’ driveways and the NEMA 14-50 at a rental — check first whether your EV9 already came with Kia’s dual-level cable, because if it did, this is a duplicate purchase.
