diff --git a/ESP32/TempHumLoggerHomeKit/TempHumLoggerHomeKit.ino b/ESP32/TempHumLoggerHomeKit/TempHumLoggerHomeKit.ino
index 4c79926..d053273 100644
--- a/ESP32/TempHumLoggerHomeKit/TempHumLoggerHomeKit.ino
+++ b/ESP32/TempHumLoggerHomeKit/TempHumLoggerHomeKit.ino
@@ -9,7 +9,7 @@
 #include "SD.h"
 #include "SPI.h"
 
-#define Version "0.28"
+#define Version "0.29"
 #define WIRE Wire
 #define DHTTYPE DHT22
 #define DHTPIN 4
@@ -440,6 +440,11 @@ void loop() {
     
 //  Log napiećia docelowoe procent baterii 
 //  kiedy zaden przycisk  nie jest wcisniety
+    if (abs (batteryVoltage - currentBatteryVoltage) >= 0.2 && digitalRead(BTN_DOWN) == LOW  && digitalRead(BTN_UP) == LOW  && digitalRead(BTN_ENTER) == LOW ) {    
+      lastBatteryVoltage = currentBatteryVoltage;
+      currentBatteryVoltage = batteryVoltage;
+    }
+
     if (secs % 15 == 0) {    
       lastBatteryVoltage = currentBatteryVoltage;
       currentBatteryVoltage = batteryVoltage;