Modifying cheap temperature / humidity sensor to use rechargeable AAA batteries instead of L1154!
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The cheapest 18650 charger on ebay also works with 2170, 2670 (26700) and power tool battery repair!
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Newacalox 858D Hot Air Rework Station Review: Thermal tests and a heatsink mod! A useful cheap tool!
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Random Bits 0323: Vintage blue milk crate full of tools! Black & Decker U-450, Craftsman tools.
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Let's talk more about reducing waste when 3D Printing, and be mindful of the "soft mind-control"
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