DEV-13158 Datasheet, PDF (1/1 Pages) SparkFun Electronics – SparkFun LiPower Shield

SparkFun LiPower Shield
DEV-13158 ROHS 
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Description: 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 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 board’s 5V pin. The on-board
MAX17043G+U IC is connected to the I²C lines (A4 and A5) so that your project can
monitor it’s 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.
https://www.sparkfun.com/products/13158
10/22/2015