I want to make my own bike light (just got my first proper mountain bike a few weeks back) but I have never heard of the batteries you guys are using = 18650 something
so... if i make my own Cree XM_L light, can I power it with these kind of batteries since I have lots as I fly rc helis
LiPo, LiFe, NiMH Battery>Turnigy Lipoly
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Thread: Clueless on batteries... but...