Sunny Buddy Solar Charger V13 Hookup Guide

Contributors: SFUptownMaker
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Heads up! If you have an older version of the Sunny Buddy (V1.0 and older), please refer to this hookup guide. For V1.3 and beyond, continue reading. Check the back of the board for the version number.

The Sunny Buddy is a small maximum power point tracking solar charger for single-cell LiPo batteries.

SparkFun Sunny Buddy - MPPT Solar Charger

SparkFun Sunny Buddy - MPPT Solar Charger


This tutorial will help you understand what the Sunny Buddy is, why it's useful, and how to use it.

Required Materials

The Sunny Buddy can't do anything without a supporting cast. Pair the Sunny Buddy with these buddies to make it work:

  • A Load -- Your battery has to power something, right? Your load can be anything from an LED to an Arduino-powered robot.

Suggested Reading

Here are some other tutorials you may find useful before delving into this hookup guide: