Disposable alkaline batteries are not perceived by most people to be rechargeable, and that's how the manufacturers like it. Until digital pulse-technology chargers came out a few years ago, it was NOT an option for most people. Alkaline battery walls are very thin, and the heat generated by simple brute-force recharging frequently split them open with a bang.
Link. I think plunking down $40 on this thing could save serious cash in the long run. AND stick it to Big Battery.
Indexed by tags science, technology, battery, energy.