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Author Topic: Powering Sparkfun Triple LED via battery  (Read 741 times)
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Simple question.  How would I power this?

Using as a vehicle headlight, needs to be mobile.  Says 7v to 30v in, but at 650ma each LED I think a simple 9v alkaline battery wouldn't last long and as the battery depleted the voltage would drop.  Looking more at a lithium ion rechargeable type battery, and since it will be attached to an arduino (3.3v or 5v, will decide based on the lighting power) I think that could be done.  I would like to also power an Arduino with the same source if possible.  Also want to power 50 or so super bright LEDs (2.4v 20ma) ( preferably with the same power source.  First battery powered Arduino project and getting a bit ambitious.

Would this work?

« Last Edit: June 10, 2011, 03:20:28 pm by crackerjax » Logged

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That battery is half the size/weight that a 6300mah battery should be. Very dubious that it's rated properly. 

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