Rivian · 2022–2026
R1S Standard Pack
Adventure electric SUV. Here's what its onboard charger actually needs from your home's electrical panel.
Home (Level 2) charging facts
Pulled straight from the R1S Standard 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
- 9.1 hrs
- 105 kWh battery ÷ 11.5 kW
- Range added per hour
- ~26 mi/hr
- 11.5 kW × 2.3 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 R1S Standard 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 R1S'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 | ~9 mi | ~72 mi |
| 24A | 5.8 kW | ~13 mi | ~104 mi |
| 32A | 7.7 kW | ~18 mi | ~144 mi |
| 40A | 9.6 kW | ~22 mi | ~176 mi |
| 48A | 11.5 kWcapped by car | ~26 mi | ~208 mi |
Overnight, at full onboard speed
208 mi / 8 hrs
260 mi across a 10-hour window, at 11.5 kW.
Approximate cost to fill from empty
$13.65
Assumes $0.13/kWh (a national-average estimate, not your local rate) × 105 kWh - about $0.057/mile.
Rivian R1S charging questions
How long does it take to charge a 2022–2026 Rivian R1S Standard Pack on a Level 2 charger?
About 9.1 hours from empty to full at its 11.5 kW onboard-charger ceiling (105 kWh battery ÷ 11.5 kW).
Times scale with amperage - see the circuit-size table above for other settings.
What amperage does a Rivian R1S draw on Level 2?
At its full 11.5 kW rate, the Rivian R1S draws about 48A at 240V (kW × 1000 ÷ 240 = amps).
Can a Rivian R1S use a 48-amp charger?
Not to any real benefit. The Rivian R1S'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 R1S add per hour on a Level 2 charger?
About 26 miles of range per hour at its 11.5 kW ceiling (11.5 kW × 2.3 mi/kWh efficiency).
How much range does an 8-hour overnight charge add to a Rivian R1S?
Roughly 208 miles from an 8-hour overnight charge (26 mi/hr × 8 hours), or about 260 miles across a 10-hour window.
What's the DC fast charging ceiling for a Rivian R1S?
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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