Did the Bluetti Pioneer Na keep working in the freezing cold when most batteries would give up? I tested it to find out.

Abstract: This article describes a new numerical calculation method for the eddy current loss of flat wire windings in the electric vehicle motor, namely the eddy current magnetic network method ...

The specs it's put forward are extraordinary: 400 watt-hours of energy density (roughly double today's lithium-ion cells), a ...

Abstract: This article introduces a new type of motor called the tubular dual-stator switched reluctance linear motor. It is designed to improve upon traditional cylindrical longitudinal flux switched ...

Found in Apple AirTags, the CR2032 button cell battery, also known as a coin battery, is actually surprisingly easy to test ...