diff --git a/check-ups-runtime.sh b/check-ups-runtime.sh
new file mode 100644
index 0000000..fce4496
--- /dev/null
+++ b/check-ups-runtime.sh
@@ -0,0 +1,17 @@
+#!/bin/bash
+
+WEBHOOK="https://discord.com/api/webhooks/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+LOGFILE="/var/log/ups-shutdown.log"
+
+UPS_DATA=$(upsc eaton@localhost 2>/dev/null)
+STATUS=$(echo "$UPS_DATA" | grep '^ups.status:' | awk '{print $2}')
+RUNTIME=$(echo "$UPS_DATA" | grep '^battery.runtime:' | awk '{print $2}')
+BATTERY_CHARGE=$(echo "$UPS_DATA" | grep '^battery.charge:' | awk '{print $2}')
+MODEL=$(echo "$UPS_DATA" | grep '^device.model:' | cut -d ':' -f2- | sed 's/^ *//')
+
+if [[ "$STATUS" == "OB" && "$RUNTIME" -lt 300 ]]; then
+  MESSAGE="⏱ *$(hostname)* — autonomie critique détectée !\n🔋 Batterie : ${BATTERY_CHARGE}%\n⏳ Autonomie : ${RUNTIME} sec\n🖥️ Modèle : $MODEL"
+  echo "$(date '+%F %T') ⚠️ Recheck runtime < 300 sec (batt=$BATTERY_CHARGE%, runtime=$RUNTIME sec)" >> "$LOGFILE"
+  jq -n --arg content "$MESSAGE" '{content: $content}' | \
+    curl -s -H "Content-Type: application/json" -X POST -d @- "$WEBHOOK" > /dev/null
+fi