Rivian adds 390-mile Max Pack battery to R1S SUV

Rivian has made its biggest battery, a 180-kwh unit dubbed the Max Pack, available on its R1S SUV for the first time. Previously limited to the R1T pickup truck, the Max Pack battery can now be ordered on the R1S for fall delivery. Like on the R1T, the Max Pack on the R1S can only be configured with a Dual-Motor powertrain. The R1S has an…