How to Make the Ultimate 18650 Power Bank with Infinitely Expandable Capacity

; Date: June 2, 2019

Tags: Do it yourself »»»» DIY »»»» Battery Packs

Why should commercially made power banks be so expensive and so small? This DIY powerbank can be built by anyone at a fraction of the price of commercially made power banks. This unit can power not just USB devices, but 120 volt AC devices, it charges over USB or USB-C, and contains voltage displays. This plan reuses a lot of commercially made components. What makes it work is some highly customized 3D-printed parts from which the case is built.

How to Make the Ultimate 18650 Power Bank with Infinitely Expandable Capacity

About the Author(s)

David Herron : David Herron is a writer and software engineer focusing on the wise use of technology. He is especially interested in clean energy technologies like solar power, wind power, and electric cars. David worked for nearly 30 years in Silicon Valley on software ranging from electronic mail systems, to video streaming, to the Java programming language, and has published several books on Node.js programming and electric vehicles.