diff --git a/TEF6686_ESP32.ino b/TEF6686_ESP32.ino
index c4879ce..e485443 100644
--- a/TEF6686_ESP32.ino
+++ b/TEF6686_ESP32.ino
@@ -2982,6 +2982,8 @@ void ShowBattery() {
       tft.fillRect(279, 8, 33, 16, BackgroundColor);
     }
     batteryold = battery;
+    batteryVold = 0;
+    vPerold = 0;
   }
 
   if (!wifi && batterydetect) {