Originally Posted by
matimeo
So are you saying that with rechargeables like the Eneloops the light will have poorer output compared to with alkalines (unless the light has something built in that regulate the amount of power it grabs)? Or are you just saying that when the battery starts to wear down it will drop more quickly than with alkaline?
Alkaline have higher initial voltage, so they could produce a brighter light if the current draw isn't too high. When the current draw goes up, such as when a regulated light starts pulling more amperage to keep the LED fed properly, alkaline may hit the wall very quickly. For example:
Lithium primaries (non-rechargable Lithium) and NiMH are both much better at handling the high current draw, and hold out longer against this sort of load. Further info here if you're interested:
http://www.candlepowerforums.com/vb/...runtime-graphs
Anyway, either type of NiMH is a good pick really.