EV InfrastructureCharging Calculators & Site Planning

Kia EV9

10 to 80%, best plug23 minon the 250 kW
Peak actually reached215 kWof 215 kW rated
Average power173 kWover the session
The last 20%28 min80 to 100% alone
01252500%50%100%
Charging curve: power the car accepts against state of charge. This car can use its full curve on a 500 A cabinet, because 800V means the same power at less current.

On every plug

PlugPeakAverage10 to 80%Limited by
50 kW48.1 kW43.6 kW92 minCharger current limit (split-pack voltage)
120 kW120 kW119 kW34 minCharger power rating
150 kW150 kW143 kW28 minCharger power rating
180 kW180 kW160 kW25 minCharger power rating
250 kW215 kW173 kW23 minCar's taper curve
Supercharger90.0 kW90.0 kW45 minCharger voltage ceiling (800V car)
260 kW215 kW173 kW23 minCar's taper curve
320 kW215 kW173 kW23 minCar's taper curve
350 kW215 kW173 kW23 minCar's taper curve
L2 11 kW10.9 kW10.9 kW6h 10mOnboard AC charger
On a Tesla SuperchargerThis is an 800V pack and a V3 cabinet stops at 500 V, so it cannot be charged directly. The car splits its pack or runs a boost converter and accepts about 90 kW, against 215 kW on a high-voltage cabinet. SeeSupercharger reality.

Temperature

Pack10 to 80%PeakPenalty
Cold, no preconditioning31 min175 kW+7.6 min
Ideal, preconditioned23 min215 kWbaseline
Hot30 min193 kW+6.3 min

Pack voltage

Modelled from 610 V at 0% state of charge to 810 V at 100%, so roughly 630–770 V across this session. On a 500 A cabinet that is 315–385 kW of headroom, against a curve that peaks at 215 kW. The pack's own taper arrives first, which is the comfortable way round.

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