One of the best projects I've tackled. 12x 18650 lipo batteries amounting to a whopping 44,000mah at 3.7v. brilliant power bank. : r/3Dprinting
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![The Best 18650 Batteries for Vaping [2023] - Vaping360](https://a1.vaping360.com/wp-content/uploads/2023/05/molicel-p28a-18650-35a.png?auto=compress,format "The Best 18650 Batteries for Vaping [2023] - Vaping360")
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Amazon.com: Speedy 18650 Battery Charger XTAR PB2C USB Output Function, Portable Li-ion 18650 Battery Charger Box w/USB Port and LED Display for all 18650 Batteries（Batteries NOT included) : Electronics
