While batteries are a ubiquitous part of modern life, it’s not always clear how we should store them in a way that’s safe and sustainable. From AA to AAA, C to D, 9V to 23A, it’s crucial to ...

[Ray’s] breadboard power supply lets you drain the last traces of power from ‘dead’ AA batteries. Electronics that are powered off of disposable alkaline batteries have a cutoff voltage that ...

Is anyone giving or receiving a holiday gift labeled "batteries not included"? We thought so. Listen up: We tested 15 AA batteries—the type typically used in digital cameras, flashlights ...

Their whole schtick is making eco-friendly AA batteries. As such ... have some difficulty finding them in a brick-and-mortar store. And they can be a little pricey. We charted data on two of ...