diff --git a/variants/esp32s3/mini-epaper-s3/variant.h b/variants/esp32s3/mini-epaper-s3/variant.h
index c00a540ab..06e047687 100644
--- a/variants/esp32s3/mini-epaper-s3/variant.h
+++ b/variants/esp32s3/mini-epaper-s3/variant.h
@@ -16,14 +16,21 @@
 #define I2C_SDA SDA
 #define I2C_SCL SCL
 
+#define BATTERY_PIN 2 // A battery voltage measurement pin, voltage divider connected here to
+// measure battery voltage ratio of voltage divider = 2.0 (assumption)
+#define ADC_MULTIPLIER 2.11 // 2.0 + 10% for correction of display undervoltage.
+#define ADC_CHANNEL ADC1_GPIO2_CHANNEL
+
 #define HAS_GPS 0
 #undef GPS_RX_PIN
 #undef GPS_TX_PIN
 
 #define BUTTON_PIN 3
 #define BUTTON_NEED_PULLUP
-#define PIN_BUTTON1 0
-#define PIN_BUTTON2 4
+#define ALT_BUTTON_PIN 4
+#define ALT_BUTTON_ACTIVE_LOW true
+#define ALT_BUTTON_ACTIVE_PULLUP true
+#define PIN_BUTTON3 0
 
 // #define HAS_SDCARD 1
 // #define SDCARD_USE_SOFT_SPI
@@ -33,18 +40,13 @@
 #define HAS_RTC 1
 
 #define USE_SX1262
+#define LORA_DIO1 5
 #define LORA_SCK 8
 #define LORA_MISO 6
 #define LORA_MOSI 17
 #define LORA_CS 7 // CS not connected; IO7 is free
 #define LORA_RESET 21
 
-#define LORA_DIO0 RADIOLIB_NC
-#define LORA_DIO1 5
-#define LORA_DIO2 RADIOLIB_NC
-#define LORA_RXEN 21
-#define LORA_TXEN 10
-
 #ifdef USE_SX1262
 #define SX126X_CS LORA_CS
 #define SX126X_DIO1 5