diff --git a/examples/ReadBattery/ReadBattery.ino b/examples/ReadBattery/ReadBattery.ino
index 7310967..bf95b5b 100644
--- a/examples/ReadBattery/ReadBattery.ino
+++ b/examples/ReadBattery/ReadBattery.ino
@@ -9,7 +9,7 @@
  *                         If V1.1 needs to be read, then you need to add a 100K 1% voltage divider resistor between the battery and GND
  *                         When connected to the USB, the battery voltage data read is not the real battery voltage, so the battery
  *                         voltage is sent to the UDP Server through UDP. When using it, please disconnect the USB-C
- *            T-A7670x :  Only version V1.3 has the resistor divider connected to the solar input, other versions IO38 is not connected
+ *            T-A7670x :  Only version V1.4 has the resistor divider connected to the solar input, other versions IO38 is not connected
  * @note      Onlu support T-A7670 ,T-A7608X, T-SIM7672G board , not support T-Call A7670
  */
 #include <esp_adc_cal.h>
diff --git a/examples/ReadBattery/utilities.h b/examples/ReadBattery/utilities.h
index 5fe8a75..d1cf6d6 100644
--- a/examples/ReadBattery/utilities.h
+++ b/examples/ReadBattery/utilities.h
@@ -65,7 +65,7 @@
 #define TINY_GSM_MODEM_A7670
 #endif
 
-// It is only available in V1.3 version. In other versions, IO38 is not connected.
+// It is only available in V1.4 version. In other versions, IO38 is not connected.
 #define BOARD_SOLAR_ADC_PIN                 (38)