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One thing I’m rather proud of is my changeover to using rechargeable batteries. My CD/MP3 player was using up AA batteries at an alarming rate and I was forced to buy 8-packs of Duracell Ultras every couple weeks. I got so tired of this (and of keeping the spent batteries, rolling about the floor of my car, in some vain desire to recycle them somehow) that I finally tried some NiMH Energizer rechargeables (chosen for their small recharger) which I got at Best Buy. I couldn’t be happier. The recharger came with four batteries (for a total of about forty bucks), and I just alternate the batteries two at a time to continually power my MP3 music.
All of which is pretty much prelude so I can post
this link for info on rechargeable batteries.
Not only do they have a decent FAQ on NiCad and NiMH batteries but they also sell batteries, rechargers, and accessories. Some of the accessories (like the battery holders and carriers) look particularly interesting.