Massachusetts-based 24M Technology’s “SemiSolid” design reduces dead weight in a bid to boost range, lower costs.

These models juice up your refrigerator, air conditioner, and other essentials during an emergency—no matter what.

We've all been there. Outside, the wind is howling and the rain is pounding, but you are safe and dry inside your home, feeling secure. Then, all of a sudden, everything turns dark. It takes a second ...

Lithium-ion batteries power most electronics, but they have limited energy density—they can store only a certain amount of energy per mass or volume of the battery.