diff --git a/powerwall.sh b/powerwall.sh
index 58c744de..b8886d7b 100755
--- a/powerwall.sh
+++ b/powerwall.sh
@@ -136,15 +136,28 @@ CHECKACV_SERVICE(){
 			if [ $voltstatus -lt 3 ]; then
 				echo -e "($datetime) Power off or low voltage detected\nVOLTAGE: ${INPUTACV}V" | mail -s "POWER ALERT - LOW POWER!!" $email_alert
 				[ $VERBOSE = true ] && echo "($datetime) alert sent"
+				last_battvolt=$BATTVOLT
 			fi
 			voltstatus=3
 			BATTVOLT=$(curl -s "http://10.10.0.61/stats.json" | jq '.inputs ..battV')
-			[ $VERBOSE = true ] && echo "($datetime) Battery Voltage: ${BATTVOLT}V"
-			if [ ${BATTVOLT%.*} -lt ${min_acvolt} ]; then
+			if [ ${BATTVOLT%.*} -lt ${min_battvolt} ] && [ ${BATTVOLT%.*} -gt ${min_battvolt_sys} ]; then
 				[ $VERBOSE = true ] && echo "($datetime) LOW BATTERY voltage: ${BATTVOLT}V"
-				[ $VERBOSE = true ] && echo "($datetime) Shutting down server..."
+				[ $VERBOSE = true ] && echo "($datetime) Shutting down main servers..."
 				
-
+				
+			elif [ ${BATTVOLT%.*} -le ${min_battvolt_sys} ]; then
+				[ $VERBOSE = true ] && echo "($datetime) SYSTEM LOW BATTERY voltage: ${BATTVOLT}V"
+				[ $VERBOSE = true ] && echo "($datetime) Shutting down all remaining servers..."
+			
+			else
+				[ $VERBOSE = true ] && echo "($datetime) Battery Voltage Nominal: ${BATTVOLT}V"
+				
+			fi
+			volt_diff=$((${last_battvolt%.*} - ${BATTVOLT%.*}))
+			[ $volt_diff -lt 0 ] && temp_diff=$(($volt_diff * -1))
+			if [ $volt_diff -gt 0 ]; then
+				echo -e "($datetime) Battery Voltage: ${BATTVOLT}V" | mail -s "BATTERY VOLTAGE CHANGE" $email_alert
+				last_battvolt=$BATTVOLT
 			fi
 		fi
 	    sleep 10