By Michael Kern – Mar 22, 2026, 12:00 PM CDT The core finding is that a quantum battery charges faster as it gets bigger due to a quantum effect called superextensivity, which is counterintuitive to conventional battery physics. Researchers have demonstrated the first complete charge-store-discharge cycle for a quantum battery, experimentally proving the fundamental physics works at room temperature. Despite its current limitation of only holding a charge for nanoseconds, the technology...