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Muxtronics open source 12V powerbank

Muxtronics open source 12V powerbank

A custom 12V powerbank for Cube i7 Stylus from Muxtronics:

Why would anyone even try to build a power bank – i.e. an external battery for charging mobile devices – these days? These things are commodity, it’s impossible to compete. Right? Well, that is until you find out that the type of power bank for your application, namely charging a higher-end tablet with 12V input, does not exist cheaply. Looking around for 12V power banks yields a lot of li-ion car jumpstarters (*) and very few actual power banks. Those that exist are pretty expensive and often don’t even perform that well.

Project info at

Check out the video after the break.