Disposable alkaline batteries are not perceived to be rechargeable in general discussion, and that’s how the manufacturers like it. But now we have the ‘digital pulse-technology charger’.

These chip-controlled chargers will safely and effectively recharge “disposable” alkaline batteries. For example, the Rayovac 3-in-1 Charger & Battery Xtender is a perfect find for big-time battery consumers (like any parent of a small child these days).

While not completely “green”, it helps. And it will pay for itself in a short amount of time.

From Cool Tools, via Lifehacker.