Torch Light with Generator
A device that comes in handy during Mountaineering/Trekking Difficulty Rating: 3/10 Motivation: Using AA pencil cell to power a torch is too mainstream & also power consuming. And if you are a Mountaineer, where torch-light is vital, replacing these cells becomes too much of pain in the ass. Instead, how about a torch which doesn't need cell replacement in the first place?? The chargeable torch-lights (china made), like this one, have become a commonplace in today's Electronics market. Commercial Torch-light (Not mine) But does anyone have a similar torchlight, which has lasted more than a year? So I decided to make one for myself, owing to its use during one of the Mountaineering adventures. My prototype It works just fine !!!!! Hardware: A small pipe, wheel, Long screw (for charging purpose), lots of duct tape, white paper (behind LED) Electronics: 4.8V Li-ion battery, Toggle switch, push-button switch, 9 high-power LED, Dynamo, PCB, 2 Capaci...