Creates two Particle cloud variables, one ( fuelval ) for battery voltage, and the other ( fuelper ) for battery percentage remaining.

fuelgague.ino

// Project created by David Cotterill-Drew- Just to learn and have fun!
// 05/04/2016 23:08 GMT

#include "application.h"
double fuelval;
double fuelper;

FuelGauge fuel;
void setup()
{
  fuelval=fuel.getVCell();
  fuelper=fuel.getSoC();
}

void loop()
{
  fuelval=static_cast<double>(fuel.getVCell());
  fuelper=static_cast<double>(fuel.getSoC());
  Particle.variable("Voltage" ,fuelval );
  Particle.variable("Percent", fuelper);
}