Rivian · 2022–2026
R1T Max Pack
Maximum range electric truck. Here's what its onboard charger actually needs from your home's electrical panel.
Home (Level 2) charging facts
Pulled straight from the R1T Max Pack'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
- 15.7 hrs
- 180 kWh battery ÷ 11.5 kW
- Range added per hour
- ~23 mi/hr
- 11.5 kW × 2 mi/kWh efficiency
- DC fast charging
- 215 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
NACS
NACS (North American Charging Standard, originally Tesla's plug) is now the connector most new EVs are shipping with for both home Level 2 and public DC fast charging.
On the R1T Max Pack specifically, that connector carries up to 11.5 kW at home on Level 2 and up to 215 kW on public DC fast hardware.
Charging speed by circuit size
The Rivian R1T'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 | ~8 mi | ~64 mi |
| 24A | 5.8 kW | ~12 mi | ~96 mi |
| 32A | 7.7 kW | ~15 mi | ~120 mi |
| 40A | 9.6 kW | ~19 mi | ~152 mi |
| 48A | 11.5 kWcapped by car | ~23 mi | ~184 mi |
Overnight, at full onboard speed
184 mi / 8 hrs
230 mi across a 10-hour window, at 11.5 kW.
Approximate cost to fill from empty
$23.40
Assumes $0.13/kWh (a national-average estimate, not your local rate) × 180 kWh - about $0.065/mile.
Rivian R1T charging questions
How long does it take to charge a 2022–2026 Rivian R1T Max Pack on a Level 2 charger?
About 15.7 hours from empty to full at its 11.5 kW onboard-charger ceiling (180 kWh battery ÷ 11.5 kW).
Times scale with amperage - see the circuit-size table above for other settings.
What amperage does a Rivian R1T draw on Level 2?
At its full 11.5 kW rate, the Rivian R1T draws about 48A at 240V (kW × 1000 ÷ 240 = amps).
Can a Rivian R1T use a 48-amp charger?
Not to any real benefit. The Rivian R1T'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 Rivian R1T add per hour on a Level 2 charger?
About 23 miles of range per hour at its 11.5 kW ceiling (11.5 kW × 2 mi/kWh efficiency).
How much range does an 8-hour overnight charge add to a Rivian R1T?
Roughly 184 miles from an 8-hour overnight charge (23 mi/hr × 8 hours), or about 230 miles across a 10-hour window.
What's the DC fast charging ceiling for a Rivian R1T?
Up to 215 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 Rivian 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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