diff --git a/src/hal/ttgov21old.h b/src/hal/ttgov21old.h
index ebb76e4d..ce92a8a4 100644
--- a/src/hal/ttgov21old.h
+++ b/src/hal/ttgov21old.h
@@ -10,8 +10,8 @@
 
 #define HAS_DISPLAY U8X8_SSD1306_128X64_NONAME_HW_I2C
 //#define DISPLAY_FLIP  1 // rotated display
-#define HAS_BATTERY_PROBE ADC1_GPIO35_CHANNEL // uses GPIO7
-#define BATT_FACTOR 2 // voltage divider 100k/100k on board
+//#define HAS_BATTERY_PROBE ADC1_GPIO35_CHANNEL // uses GPIO7
+//#define BATT_FACTOR 2 // voltage divider 100k/100k on board
 
 // re-define pin definitions of pins_arduino.h
 #define PIN_SPI_SS    GPIO_NUM_18 // ESP32 GPIO18 (Pin18) -- HPD13A NSS/SEL (Pin4) SPI Chip Select Input