ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,438, issued on Sept. 16.

"Dual-battery charging system for electric vehicles" was invented by Kerolos Bishai (Naples, Fla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosed system includes two battery packs, at least one motor, a generator subsystem, controllers, and a switch wherein the battery packs are independent of one another but can either be undergoing charging or propelling an EV separately. A controller monitors comparative charge levels of the two battery packs and at a predetermined charge-difference value triggers the switch to reverse the roles of the battery packs."

The patent was filed on July 20, 2023, under Application...