Tesla · 2021–2026
Model Y Long Range
Extended range family hauler. Here's what its onboard charger actually needs from your home's electrical panel.
Home (Level 2) charging facts
Pulled straight from the Model Y Long Range's onboard charger rating - not a generic EV number.
- Onboard charger draw
- 11.5 kW
- ~48A at 240V (kW × 1000 ÷ 240)
- Empty-to-full at max Level 2
- 7.1 hrs
- 82 kWh battery ÷ 11.5 kW
- Range added per hour
- ~39 mi/hr
- 11.5 kW × 3.4 mi/kWh efficiency
- DC fast charging
- 250 kW max
- Public chargers only - tapers as the battery fills
Typical full-speed install
48A charger on a 60A circuit
Reaches this car's 11.5 kW ceiling. Whether your panel has room for that circuit depends on everything else already on it - that's the actual assessment.
Connector
Tesla
This car uses Tesla's proprietary connector. Home Level 2 charging still runs through a standard 240V circuit - the connector only affects which cable or adapter you plug in.
On the Model Y Long Range specifically, that connector carries up to 11.5 kW at home on Level 2 and up to 250 kW on public DC fast hardware.
Charging speed by circuit size
The Tesla Model Y's onboard charger can't use more than 11.5 kW AC no matter how big the circuit - past 48A, a bigger charger buys you nothing on this car.
| Charger setting | This car actually draws | Range added / hour | 8-hr overnight |
|---|---|---|---|
| 16A | 3.8 kW | ~13 mi | ~104 mi |
| 24A | 5.8 kW | ~20 mi | ~160 mi |
| 32A | 7.7 kW | ~26 mi | ~208 mi |
| 40A | 9.6 kW | ~33 mi | ~264 mi |
| 48A | 11.5 kWcapped by car | ~39 mi | ~312 mi |
Overnight, at full onboard speed
312 mi / 8 hrs
390 mi across a 10-hour window, at 11.5 kW.
Approximate cost to fill from empty
$10.66
Assumes $0.13/kWh (a national-average estimate, not your local rate) × 82 kWh - about $0.038/mile.
Tesla Model Y charging questions
How long does it take to charge a 2021–2026 Tesla Model Y Long Range on a Level 2 charger?
About 7.1 hours from empty to full at its 11.5 kW onboard-charger ceiling (82 kWh battery ÷ 11.5 kW).
Times scale with amperage - see the circuit-size table above for other settings.
What amperage does a Tesla Model Y draw on Level 2?
At its full 11.5 kW rate, the Tesla Model Y draws about 48A at 240V (kW × 1000 ÷ 240 = amps).
Can a Tesla Model Y use a 48-amp charger?
Not to any real benefit. The Tesla Model Y's onboard charger tops out at 11.5 kW (~48A) - a 48A charger doesn't charge it any faster than one already sized to 48A.
How much range does a Tesla Model Y add per hour on a Level 2 charger?
About 39 miles of range per hour at its 11.5 kW ceiling (11.5 kW × 3.4 mi/kWh efficiency).
How much range does an 8-hour overnight charge add to a Tesla Model Y?
Roughly 312 miles from an 8-hour overnight charge (39 mi/hr × 8 hours), or about 390 miles across a 10-hour window.
What's the DC fast charging ceiling for a Tesla Model Y?
Up to 250 kW on a public DC fast charger - well above its 11.5 kW Level 2 (home) ceiling, though DC fast rates taper as the battery fills.
Other Tesla EVs
Will your panel handle this?
ChargeRight runs the full NEC load calculation against your actual panel - not a generic rule of thumb.
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