Hey guys i need help selecting a battery that would work most efficiently. The battery is powering a 200mW laser. Currently i'm using a 12v battery with a lm1117 voltage regulator. the laser runs on 3v so the voltage regulator gets very hot because there is a huge voltage difference. So would it wo…

Help selecting battery please?

system April 23, 2014, 10:09am 8

So what am I to do? Must I just make sure I never use the battery until it gets that flat?

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