A 4-layer creation peppered with vias, this board’s a hefty one — it’s not often that you see a Li-Ion charger designed to push as much current as possible into a cell, and the chips are ...

BEMIDJI, Minn. (Valley News Live) - The Bemidji Fire Department is putting out a warning about lithium-ion batteries after a man’s cell phone caught fire. Firefighters responded after a man ...