Energy Shield is a LiPo battery based power shield that keeps your project alive. It keeps its battery charged whenever an available power source exists. It accepts a wide range of power sources, from common solar cells via JST connector and USB via USB port on microcontroller, to 9V and 12V DC adap..
Is there anything an Arduino can’t do? Well, for one, most of them can’t be powered directly from a 3.7V LiPo battery; much less charge and monitor that battery. The SparkFun LiPower Shield takes care of this by combining the functionality of two of our favorite battery power boards: the Power Cell ..
The solar charger is a stackable shield to Arduino compatible platforms, enabling adaptive battery power and acts as an energy harvester for in-field charging. You may use various batteries with voltages between 3.0V and 4.2V to shift up to 5V output, or connect a Li-ion battery and solar panel to f..