eBay 98kW LED flashlight (slightly exaggerated) with schematic

Another of the many products on eBay where the sellers try to outdo each other with very ambitious ratings. Far too ambitious in this instance. The construction of the light is interesting because it has been optimised for fast manufacture. The circuitry is ultra minimalist, including the USB charging circuitry that doesn't inspire a lot of confidence. Don't leave one of these on continuous charge. Other than that, it does work, the beam focus feature works well and it doesn't have too many useless modes. The cell capacity tests at a very ungenerous 160mAh and the charge circuit does keep trickle charging the cell after the LED has stopped flashing, and when I monitored it for a while it peaked at a slightly uncomfortable 4.27V then suddenly settled back down to 4.21V, making me wonder if it had energised the load briefly when I wasn't there as part of its charge control. If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:- https://www.bigclive.com/coffee.htm This also keeps the channel independent of YouTube's algorithm quirks, allowing it to be a bit more dangerous and naughty. #ElectronicsCreators