Update powerwall.sh

powerwall.sh

@@ -645,7 +645,7 @@ LOGROTATE(){
 
 TEST(){
 	temptotal=0
-	countback=532300
+	countback=200000
 	while IFS=$'\t' read date sensorid temp hum ;do
 		# echo date:$date sensorid:$sensorid temp:$temp hum:$hum
 		temptotal=$(bc <<< "scale=2; ${temptotal}+${temp}")