“This is a battery powered solder fume extractor. It works up to 3 hours per charge with just one 18650 battery.”Link to articleRelated ContentRelated Posts:Upcycled ATX: Build Your Own Lab Bench Power SupplyCosplay PSUPet RobotRoamer, the Self Charging Companion RobotPortable Rechargeable Power SupplyScience With Rainbows! - SpectrophotometryMake Your Own POV LED GlobeSolar USB ChargerSave Water & Money With the Shower Water MonitorLittle Flash