Staff editorial · Original launch resource · Reviewed 2026-10-24. This is not a member testimonial.
Official answer: 32 amps is the NACS Portable Charger’s listed maximum. Rivian rates that product at up to 7.6 kW and supplies a NEMA 14-50 adapter. The receptacle’s label does not override the charging equipment’s own limit. Rivian source
At a nominal 240 volts, 32 amps corresponds to 7.68 kW before differences in measurement and losses. That explains the product’s approximately 7.6 kW rating. Seeing roughly that output is not, on its own, evidence that the R2 has a charging defect. Conversely, an equipment maximum does not promise that every installation or session will reach it.
A larger number on a breaker or socket is not permission to increase a setting beyond the charger’s rating. The vehicle, charger and installation all matter. A different charger may offer different capability, but that is a separate equipment and installation decision.
Next step: compare the exact charger model with its specification and the session’s volts, amps and kW. If the displayed rate is unexpectedly lower, give those observations to the charger provider or Rivian. Do not modify adapters or circuit settings to chase the socket’s headline number.
Sources and further reading
Corrections and firsthand experiences are welcome. Identify your R2 configuration and software version when relevant.