Add power supply to your prototypes
SparkFun Breadboard Power Supply Stick - 5V/3.3V gives a selected output of 3.3V or 5V along with a voltage switch.
Voltage Regulator - 3.3V provides a steady output voltage.
The gShield for Arduino (formerly known as grblShield) is a complete hardware solution for Dank’s CNC motion control system called grbl.
PowerBoost 500 Charger - Rechargeable 5V Lipo USB Boost @ 500mA+ helps you to recharge you battery on the go when you are doing your project.
Sparkfun Babysitter is an all in one solution to keep you project powered up for an extensive period.
SparkFun Power Cell - LiPo Charger/Booster boosts up your battery power, comes with two separate connectors and output pins.
Sparkfun Servo trigger is a small board that can control movements of servo motors.
AttoPilot Voltage and Current Sense Breakout - 180A is used to monitor the voltage and current sense.
PowerBoost is the perfect power supply for your portable project! This little DC/DC boost converter module can run from 1.8V batteries or higher, and convert that voltage to 5.2V DC for running your 5V projects.
This is the Sunny Buddy, a maximum power point tracking (MPPT) solar charger for single-cell LiPo batteries.
This current sensor gives precise current measurement for both AC and DC signals.
This is a breakout board for the fully integrated Hall Effect based linear ACS712 current sensor. The sensor gives precise current measurement for both AC and DC signals.