Donut Lab, a Finnish solid-state battery maker, claims its cells retained 97.7% of their charge after sitting idle for 10 days, a figure that, if independently confirmed, would represent a sharp ...

Much like a car owner, a motorcycle owner can't just use their chosen mode of transportation without putting in some time and money. Motorcycles require maintenance to run at their best and to keep ...

Donut Labs gave its new solid-state motorcycle battery to an independent third-party testing lab for validation. Supposedly, its charging speeds line up. But I'm still not convinced.