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Lightwave said:
txwest,
That's a great idea, using a 3 volt LED first with one set of 2 cells, then the second set, and then finally going to 3 and 4 cells as they become weaker. How do you perform the switching - did you rig up a switch, or do you have some sort of a jumper in the battery compartment to select which batteries are used?
[/ QUOTE ]Sorry for the late reply. For hers, I just put in 2 plain cells & 2 with a piece of electrical tape on 1 end & wrap them in foil. When they get dim, switch to the new set & move the tape & foil to the used set. When they get dim, take the tape & foil off 1 cell, and then later, off the other. Now that I have a supply of dummy cells, I'd just use 2 new, then the other 2 new cells, then 3 cells, then finally 4 drained cells. Should get a long burn from 4 batteries.