BooSTick – small AA voltage booster on Kickstarter

By on March 31, 2016
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A single AA battery is used to provide 5V or 3.3V (or other voltages by tuning the feedback resistors). A boost regulator provides the “over”voltage.

At 5 V, 200 mA output, BooSTick can handle even the biggest Arduinos. Even if you’re sloppy with power management in your code and you use a power hungry shield, you can use two BooSTicks in parallel to provide even more than 200 mA.  Or better yet, connect a two battery AA holder to achieve more than 550 mA at 5 V.  That’s enough to charge a cell phone!

Remote sensors:​ I used the BooSTick to power a TI RF2500 microcontroller board with a low power radio: with sensors attached to it. I needed to make sure the accelerometer I wanted to use for the POV light was in the right acceleration range so the wheel rotation wouldn’t just max it out all the time. I used the RF2500 to take acceleration measurements and radio them back to my PC.


Voltage outputs:

  • 3.3 V (with jumper installed)
  • Pull the jumper for a full 5V supply! (included)
  • Other voltages between 1.8 V and 5.5 V are achievable by tuning the feedback resistors. Specify different voltage if desired.

Current limit (with new batteries). This is intended to be a peak current or a pulsed current.  A new battery will only last about 20 minutes at these levels before the output voltage drops more than 10%.

  • 5V: 220 mA
  • 3.3V: 320 mA
  • Valid for both Alkaline and NiMH
  • Want more current?  Attach a 2 battery holder to achieve over 750 mA at 3.3 V and over 550 mA at 5 V.  That’s enough to charge a cell phone!

Run time:

  • 5V, 50 mA: 6 hrs
  • 3.3V, 50 mA: 12 hrs
  • Valid for both Alkaline and NiMH
  • Lower current/voltage generally leads to proportionally longer run time or more
  • Want more run time?  The version that ships will accommodate a C size battery holder for more than 2x run time!


  • Green power on LED
  • Red low battery LED

BooSTick is released under the Creative Commons Attribution-NonCommercial 4.0 International license.

Files are up on Hackaday:

200% funded and less than 10 days remaining on Kickstarter!

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