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out_of_protocol | 4 months ago

18650 are everywhere from hand tools, drones and vapes to Teslas and scooters. High energy per cell (up to 3600 mAh * 3.7V ~= 13Wh) and fairly cheap

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Gigachad|4 months ago

Almost nothing lets you replace the cells individually though. They seal them in a pack which requires buying a replacement proprietary pack.