State of charge Determination/Current measurement

In this post i am going to explain how to find state of charge of the battery using current sensor ACS712 30 A sensor.connect the load in series to the current sensor.

float rawvalue;
float current;
float soct=100;

void setup()
{
  Serial.begin(9600);
}
void loop()
{
  float averagecurrent=0;
  for (int i=0;i<5;i++)
{
 rawvalue=analogRead(A0);

 current=((0.0049*rawvalue)-2.5)/0.066;
 averagecurrent=averagecurrent+current;
 delay(1000);
}
soct=soct-((averagecurrent)/18000)*100;
Serial.print( averagecurrent );
Serial.print(" ") ;
Serial.println( soct );
}

The above program shows how to find the soc using ACS712