The new battery achieves an unprecedented energy density. Scientists make stunning breakthrough in battery efficiency — ...

Cordless power tool battery replacements are expensive: you can easily spend $100 for a NiCd pack. [henal] decided to skip nickle-based cells and cut out the middleman by converting his old ...

That’s precisely what happened to [Larry G] when the now antiquated 7.2V NiCd batteries used by his cordless drill became too hard to track down. The drill was still in great shape and worked ...

Retailers such as Costco, Target and Walmart don’t own their own battery factories. They contract with the biggies such as ...