"I've seen plenty of DIY electronics projects that make you go "wtf, why" (this Bluetooth speaker in a walnut comes to mind) but this battery-to-Bluetooth-speaker conversion sits in a completely different category. Someone actually spent two weeks gutting a battery casing, drilling 60 precision sound holes, and cramming a full Bluetooth speaker setup inside what used to house alkaline cells. The kicker? It actually sounds good. Like, surprisingly good for something that began life as a Duracell knockoff with a pink bunny on the wrapper."
"This maker didn't just crack open the battery and start drilling. They built a makeshift fan out of a toy car motor, some blue electrical tape, and a propeller to safely drain the thing over three days. Three full days of waiting for a janky desk fan to suck the last electrons out of a battery so they could avoid turning their workspace into a lithium fire hazard. That's either extreme patience or mild insanity, and honestly, I respect both."
An alkaline battery casing was converted into a Bluetooth speaker by gutting the cell, drilling 60 precision sound holes, and installing a full Bluetooth audio setup. The battery was discharged over three days using a makeshift fan built from a toy car motor, electrical tape, and a propeller to avoid fire hazards. Disassembly progressed from thin drill bits to a rotary tool with high-carbon steel bits, with tape used to catch metal fragments and a rubber glove worn during extraction. The battery core was removed with pliers, residue scraped with a popsicle stick, and the interior cleaned with alcohol, yielding surprisingly good sound.
Read at Yanko Design - Modern Industrial Design News
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