DEV-13158 SparkFun

SparkFun LiPower Shield DEV-13158 ROHS Is there anything an Arduino cant do? Well, for one, most of them cant 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 and the Fuel Gauge. The LiPower Shield allows you to connect a 3.7V single cell Lithium polymer battery which it will boost up to 5V and connect to the Arduino boards 5V pin. The on-board MAX17043G+U IC is 2 connected to the I C lines (A4 and A5) so that your project can monitor its own power supply. The configurable alert interrupt pin on the MAX17043G+U IC is broken out to D2 which will activate when the LiPo gets to 32% or lower. The charging circuit is configured to charge the LiPo at 100mA but by adding a resistor to the supplied through-holes you can boost this to 500mA. There is a mini-USB port on the shield which allows you to charge the battery from a USB power source or you can supply a separate regulated 5V source on the charge header. **Power Warning!** last updated about a year ago A word of warning - If youre trying to connect the shield to an Arduino, make sure that the shield is not powered as you connect them. Connecting the device while powered seems to blow out the boost regulator on the board, causing an irreparable failure.