The watt reigns supreme, if only companies would share it with us. Every time I see “mAh” on a consumer product, I cringe.

Understanding watt-hours will help you survive power outages and off-grid adventures.

A team of chemists led by Feng Lin and Louis Madsen found a way to see into battery interfaces, which are tight, tricky spots ...

Duracell has changed hands a few times, but today, it's owned by Berkshire Hathaway — the same conglomerate behind Dairy ...