“I'm not including NiCd because that's a dead technology - NiMh is superior in all respects.”

Hello Niyty,
I think NiCd will stay alive for a while since it has the BEST drain performance of NiMh, Alkaline, and Li. Mainly because they have the lowest internal resistance (by far). R/C airplane enthusiasts love that. And they’re still kicking in the power tool segment. And they’re much easier to charge because it is very forgiving of overcharging and thus uses a cheaper charger. This is also why the most popular solar cell setups use NiCd. NiMh need the more elaborate –dV/dT w/ cutoff chargers to get the most charges out of them (which I have tested for the last 3 years). Also NiCd ends up giving the lowest cost in A-Hr/1000-uses.

True, I wouldn’t use them right now because I can get more runtime with the 2500mAh NiMh or a Lithium AA in my flashlight. But if you don’t mind changing the batteries out more often, this would be the lowest cost choice (for battery and charger).

I just didn’t want to count out my babies <img src="/forums/images/graemlins/tongue.gif" alt="" />.
-Barry