A comprehensive document used to certify the 2025 Rivian R1T and R1S in the U.S. has leaked online, revealing several changes that have been made to the company’s two flagship models. One of the most significant updates relates to the battery pack of the Standard Range models. Whereas the standard pack previously had a capacity of 105.9 kWh, it has now shrunk to 92.5 kWh and is a lithium iron phosphate (LFP) battery. The weight of this battery has decreased from 796 kg to 727 kg.

Real-world range figures won’t be known until the EPA tests the 2025 Rivian R1T and R1S models. However, in the document, Rivian claims that the R1S and R1T Dual Standard models with 20-inch wheels can travel 612 km in the city and 518 km on the highway. Equipping the same models with larger 22-inch wheels, the claimed range swells to 652 km city and 547 km highway. It’s important to note that these figures were recorded on a rolling road and will likely be reduced in the real world. The document also mentions that the 2025 R1 supports 210 kW fast charging, the same as the outgoing model.

 

Elsewhere, the Rivian Forums note the 2025 R1T and R1S will continue to use CCS ports. This decision comes despite the fact that Rivian models can now utilize the Tesla Supercharger network with a supplied NACS adapter. The EV startup had previously announced that future R1 models would come standard with the NACS plug starting in 2025, but shoppers may now have to wait until the 2026 model year.

Several other changes have been implemented in the R1 models. For example, the 21-inch wheel option appears to have been discontinued, leaving only 20-inch and 22-inch options available. Additionally, ‘Performance’ and ‘Aero’ versions of the 22-inch wheels will be offered. Rivian has also equipped the the 2025 models with heat pumps as standard, and the AC compressor has been relocated to enhance NVH performance.

A pair of photos of a 2025 Rivian R1S were also included in the document, confirming that the prototypes we saw at the start of the year were indeed 2025 R1 models. Despite the colorful camouflage, Rivian doesn’t appear to have made any noteworthy changes to the exterior design of the new models. It’s unclear when the updated 2025 R1T and R1S could premiere but a launch could come during the brand’s investor day on June 27.