diff --git a/master/master/lib/sensordata.c b/master/master/lib/sensordata.c
--- a/master/master/lib/sensordata.c
+++ b/master/master/lib/sensordata.c
@@ -84,7 +84,7 @@ char* slavesensors_getAPRScomment(char* 
 	{
 		// Master details
 		uint16_t len = strlen(commentBuffer);
-		snprintf(commentBuffer + len, bufferSize-len, "~t9%d~s%s~h%s", sensors_getBoardTemp(), get_sv(), get_hdop());
+		snprintf(commentBuffer + len, bufferSize-len, "~t9%d~b9%d~s%s~h%s", sensors_getBoardTemp(), sensors_getBatt(), get_sv(), get_hdop());
 		
 		// Find slave sensors to include in this log
 		for(int i=0; i<MAX_NUM_SLAVES; i++)
@@ -100,7 +100,7 @@ char* slavesensors_getAPRScomment(char* 
 			val = sensordata_get(i, SENSOR_BATTERYLEVEL);
 			if(val != -2111111111) {
 				uint16_t len = strlen(commentBuffer);
-				snprintf(commentBuffer + len, bufferSize-len, "~l%u%li",i,val);
+				snprintf(commentBuffer + len, bufferSize-len, "~b%u%li",i,val);
 			}
 		
 			// Pressure