How to Run 12V Fan on 3V #electronic

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In this video, we’ll show you how to use an MT3608 voltage booster to power a 12V cooling fan from a 3.7V lithium battery! This DIY project is ideal for anyone looking to create portable, battery-powered cooling solutions using easy-to-find components.

We’ll walk you through the steps to connect the MT3608 boost converter and adjust it to safely step up the 3.7V input from a lithium-ion battery to a steady 12V output. This allows you to power small 12V devices, like a cooling fan, from a compact battery source, making it perfect for portable cooling setups and DIY electronics projects.

What you’ll learn:

Setting up the MT3608 step-up converter for 12V output

Connecting a 3.7V lithium battery to power a 12V fan

Adjusting the MT3608 voltage booster safely

Testing and troubleshooting for stable performance

Tips for creating compact, battery-powered devices


This project is great for beginners and electronics enthusiasts who want to learn more about boost converters and powering 12V devices with low-voltage sources. By the end of this tutorial, you’ll have a working 12V cooling fan powered by a 3.7V battery—a great way to explore the possibilities of portable power!

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#diyelectronics #12v #coolingfan #voltagebooster #circuit #simplecircuit #electronicproject