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Power Management


The 3.3/5 V super-efficient regulator that snaps right on your 9 V battery.

$4,506 raised

of $3,000 goal

150% Funded! Order Below

Funding ended on Dec 14, 2015 at 03:59 PM PST.

Recent Updates

You'll be notified about news and stock updates for this project.

What is snapVCC?

snapVCC is a highly portable and convenient power supply for your electronics projects. It’s designed to fit right on a 9V battery and give you 3.3V or 5V power wherever you need it.

What can you do with snapVCC?

Many circuits require a regulated 3.3 or 5 volt power supply. The 9V battery is an easily available power supply option. A common way to power circuits using a 9V battery is to use a Linear regulator IC circuit to drop the voltage down, as shown below.

Regulator Circuit

snapVCC eliminates this additional circuit by putting the regulator right on top of the 9V battery.

Also, since snapVCC uses a buck converter, it’s more efficient than using a linear regulator.

snapVCC Breadboard

In an emergency you could even charge a simple (non-smart) phone with snapVCC.

(The above uses a home-made USB adapter cable.)



snapVCC uses a buck converter for efficient regulation of battery voltage. snapVCC has an LED power indicator, reverse polarity protection, and you can switch between 3.3V and 5V by just switching a jumper.

Your breadboard's new best friend. Available as singles, and in packs of two and five for extra savings - in case you need one for every toolbox, or if you want to have extras to share. Free shipping to US and India.

Python Playground Book

Mahesh’s new book Python Playground: "… a collection of imaginative programming projects that will inspire you to use Python to make art and music, build simulations of real-world phenomena, and interact with hardware like the Arduino and Raspberry Pi". Free shipping to US and India.


If shipping to India, please place the order with the international shipping surcharge, and your order total will be adjusted to free shipping after the order is placed.

Open Source

snapVCC is an Open Source hardware project. All design files for this project can be found on the electronut GitHub repository.

Manufacturing Plan

snapVCC has gone through several rounds of prototyping that has improved the design and efficiency of the product.

SnapVCC Prototype Versions

And now, snapVCC is ready for production.

snapVCC on 9V

The research on components and pricing is done, and production quotes are in from Seeed Studio in Shenzen. The groundwork for manufacturing is over. All that’s needed now to bring snapVCC to life is your support!

Free shipping to the US and India

If shipping to India, please place the order with the international shipping surcharge, and your order total will be adjusted to free shipping after the order is placed.


snapVCC is the creation of Mahesh Venkitachalam, Indie hardware maker, electronics hacker, and author of Python Playground (No Starch Press, USA). He maintains, a popular blog on electronics and programming.

Produced by Electronut Labs in Bangalore, India.

Sold and shipped by Crowd Supply.

snapVCC Stand Alone


Your breadboard's best friend. Includes one snapVCC regulator and jumper cable set. 9V battery not included.

$13 $8 US Shipping / $18 Worldwide

snapVCC Two-pack

$24 $8 US Shipping / $18 Worldwide

snapVCC Five-pack

$59 $8 US Shipping / $18 Worldwide

About the Team

Electronut Labs

Bangalore, India  ·

Electronut Labs started as a blog on Electronics and Programming. After a long career in the software industry, Mahesh Venkitachalam wanted to return to his childhood interest in building electronic gadgets. The projects and articles in the blog gained in popularity, culminating in a book with elements of programming and hardware (Python Playground, No Starch Press).

Mahesh Venkitachalam


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