Electronics that constantly draw low amounts of power—such as some wall clocks, headlamps, or bike lights—work better with disposable alkaline batteries. Alkaline batteries start with a ...

The chemistry of an alkaline zinc battery is pretty simple on the surface. Zinc metal foil serves as one electrode, with each zinc ion liberating two electrons.

In a typical case, a digital stills camera driven by two AA batteries might draw a peak power of 3W and current of 1.5A during the auto-focus phase of its operation. Such a drive function might last ...

The iGo batteries are the same price as rechargeable NiMH batteries -- £7.99 for a pack of four, £12.99 for eight -- and the four-battery wall charger costs about the same as most two-battery ...

We know, we know. Generally speaking, you should try and switch your household devices over to rechargeable cells rather than using disposable alkaline batteries. But while they might seem increasi… ...