Hackaday (unofficial) June 5, 2021 12:00pm A Vacuum Battery Made For Looks And Learning #mischacks #18650battery #etching #machining #plating #hackaday posted by pod_feeder_v2 A Vacuum Battery Made For Looks And Learning Looks and RGB LEDs are usually not a priority in tool batteries, but [Oleg Pevtsov] decided the battery for his DIY vacuum cleaner needed to be different. In the process, he learned some lessons in…
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