I use nickel metal hydride, exclusively. I use them for my flashlights, camera and mouse. I have about 8 sets, that I swap in and out, with batteries almost always sitting in the charger.
Most bang for the buck, for sure. I think Consumer Reports just did a cost evaluation on batteries a few issues ago. NiMH don't last as long as alkaline, but it doesn't matter. You can recharge them around 500 times, so that's what makes them so cost effective. Not including the charger, however.
A great online site for batteries, chargers, etc. is www.thomas-distributing.com. That's where I get mine.
A satisfied customer
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