Dead batteries could soon find a second lease on life thanks to a new chemical injection. One of the problems with lithium-ion batteries is that, over time, they slowly lose their charging efficacy, ...

If you’re using a large battery for a specialized purpose—say grid-scale storage or an electric vehicle—then it’s possible to tweak the battery chemistry, provide a little bit of excess capacity, and ...

Which car battery charger is best? Those who have faced a dead battery know the sinking feeling and ensuing frustration. Now you have to wait for a tow or shell out for a new battery. But common ...