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Why do you estimate 1A = 1W ? Just curious how accurate this is or what its based on.

How do you calculate the 40amp current? Do you assume a resistance for the diode, or an applied voltage?

Ok, based on that logic, how much could you get out of a 10440 battery? I read a datasheet where you can get 5 amps for a 2 second pulse on a 1.5V Energizer Lithium AA battery... So that's 7.5 Watts... if the laser is 25% efficient then you get 1.875W out, or 1875mW, max ? I've also seen...

Hello, I came across this ad for a small laser pointer that claims to be 10000mw output on one 10440 battery. I don't think its possible the max I've seen is 200mw in this size. However I contacted the seller twice, and was told that the output was correct. I really quizzed them on it,but...