Tesla Patent Reveals Dual-Battery System for Trailer-Mounted Range Extender

A Tesla patent describes a dual-battery management system for a trailer-mounted range extender. The system was originally developed for the Cybertruck's bed-mounted range extender but has been adapted for the Semi, according to a separate article. Tesla claims to have 13.5 million miles of testing experience on its Semis, which have logged many long-haul journeys.

A newly published Tesla patent application has revealed a sophisticated dual-battery management system for a trailer-mounted range extender . Although the system was originally designed for the cancelled Cybertruck's bed-mounted range extender, its application to the Semi is a significant development. This suggests Tesla's engineers continued working on the technology even as the Cybertruck range extender was abandoned.

The system would integrate an auxiliary battery pack with a vehicle's primary pack, including a configuration where the auxiliary battery lives inside a towed trailer .

Separately, a report claims that Tesla's Semi trucks have reached a significant milestone, with 13.5 million miles logged on the vehicles. This extensive testing experience bodes well for the Semi's reliability and durability on long-haul journeys.