diff --git a/radio/src/targets/common/arm/stm32/adc_driver.cpp b/radio/src/targets/common/arm/stm32/adc_driver.cpp
index 9b1e3270d..43144df17 100644
--- a/radio/src/targets/common/arm/stm32/adc_driver.cpp
+++ b/radio/src/targets/common/arm/stm32/adc_driver.cpp
@@ -131,7 +131,7 @@ void adcInit()
   ADC_MAIN->SMPR1 = (ADC_SAMPTIME << 0) + (ADC_SAMPTIME << 3) + (ADC_SAMPTIME << 6) + (ADC_SAMPTIME << 9) + (ADC_SAMPTIME << 12) + (ADC_SAMPTIME << 15) + (ADC_SAMPTIME << 18) + (ADC_SAMPTIME << 21) + (ADC_SAMPTIME << 24);
   ADC_MAIN->SMPR2 = (ADC_SAMPTIME << 0) + (ADC_SAMPTIME << 3) + (ADC_SAMPTIME << 6) + (ADC_SAMPTIME << 9) + (ADC_SAMPTIME << 12) + (ADC_SAMPTIME << 15) + (ADC_SAMPTIME << 18) + (ADC_SAMPTIME << 21) + (ADC_SAMPTIME << 24) + (ADC_SAMPTIME << 27);
 
-  ADC->CCR = ADC_CCR_VBATE | ADC_CCR_TSVREFE; // Enable temperature + vbat sensor
+  ADC->CCR = ADC_CCR_VBATE; // Enable vbat sensor
 
   ADC_DMA_Stream->CR = DMA_SxCR_PL | ADC_DMA_SxCR_CHSEL | DMA_SxCR_MSIZE_0 | DMA_SxCR_PSIZE_0 | DMA_SxCR_MINC;
   ADC_DMA_Stream->PAR = CONVERT_PTR_UINT(&ADC_MAIN->DR);
@@ -248,7 +248,7 @@ void adcRead()
 #if defined(PCBX10)
 uint16_t getRTCBatteryVoltage()
 {
-  return rtcBatteryVoltage * ADC_VREF_PREC2 / 2048;
+  return (rtcBatteryVoltage * ADC_VREF_PREC2) / 2048;
 }
 #else
 uint16_t getRTCBatteryVoltage()
diff --git a/radio/src/targets/taranis/hal.h b/radio/src/targets/taranis/hal.h
index 86e19b6db..bb56e857f 100644
--- a/radio/src/targets/taranis/hal.h
+++ b/radio/src/targets/taranis/hal.h
@@ -604,7 +604,6 @@
 #define ADC_SET_DMA_FLAGS()             ADC_DMA->HIFCR = (DMA_HIFCR_CTCIF4 | DMA_HIFCR_CHTIF4 | DMA_HIFCR_CTEIF4 | DMA_HIFCR_CDMEIF4 | DMA_HIFCR_CFEIF4)
 #define ADC_TRANSFER_COMPLETE()         (ADC_DMA->HISR & DMA_HISR_TCIF4)
 #define ADC_SAMPTIME                    2   // sample time = 28 cycles
-#define ADC_VREF_PREC2                  330
 #if defined(PCBX9E)
   #define HARDWARE_POT1
   #define HARDWARE_POT2
@@ -649,6 +648,7 @@
   #define ADC_EXT_SET_DMA_FLAGS()       ADC_DMA->LIFCR = (DMA_LIFCR_CTCIF0 | DMA_LIFCR_CHTIF0 | DMA_LIFCR_CTEIF0 | DMA_LIFCR_CDMEIF0 | DMA_LIFCR_CFEIF0)
   #define ADC_EXT_TRANSFER_COMPLETE()   (ADC_DMA->LISR & DMA_LISR_TCIF0)
   #define ADC_EXT_SAMPTIME              3    // sample time = 56 cycles
+  #define ADC_VREF_PREC2                330
 #elif defined(PCBX9DP)
   #define HARDWARE_POT1
   #define HARDWARE_POT2
@@ -679,6 +679,7 @@
   #define ADC_CHANNEL_SLIDER1           ADC_Channel_14
   #define ADC_CHANNEL_SLIDER2           ADC_Channel_15
   #define ADC_CHANNEL_BATT              ADC_Channel_10
+  #define ADC_VREF_PREC2                330
 #elif defined(PCBXLITE)
   #define HARDWARE_POT1
   #define HARDWARE_POT2
@@ -707,6 +708,7 @@
   #define ADC_CHANNEL_POT1              ADC_Channel_11 // ADC1_IN11
   #define ADC_CHANNEL_POT2              ADC_Channel_12 // ADC1_IN12
   #define ADC_CHANNEL_BATT              ADC_Channel_10 // ADC1_IN10
+  #define ADC_VREF_PREC2                330
 #elif defined(PCBX7)
   #define HARDWARE_POT1
   #define HARDWARE_POT2
@@ -730,6 +732,7 @@
   #define ADC_CHANNEL_POT1              ADC_Channel_8
   #define ADC_CHANNEL_POT2              ADC_Channel_6
   #define ADC_CHANNEL_BATT              ADC_Channel_10
+  #define ADC_VREF_PREC2                330
 #elif defined(PCBX9LITE)
   #define HARDWARE_POT1
   #define ADC_RCC_AHB1Periph            (RCC_AHB1Periph_GPIOA | RCC_AHB1Periph_GPIOC | RCC_AHB1Periph_DMA2)
@@ -749,6 +752,7 @@
   #define ADC_GPIOC_PINS                (GPIO_Pin_0 | GPIO_Pin_1)
   #define ADC_CHANNEL_POT1              ADC_Channel_11 // ADC1_IN11
   #define ADC_CHANNEL_BATT              ADC_Channel_10 // ADC1_IN10
+  #define ADC_VREF_PREC2                330
 #else
   #define HARDWARE_POT1
   #define HARDWARE_POT2
@@ -777,6 +781,7 @@
   #define ADC_CHANNEL_SLIDER1           ADC_Channel_14
   #define ADC_CHANNEL_SLIDER2           ADC_Channel_15
   #define ADC_CHANNEL_BATT              ADC_Channel_10
+  #define ADC_VREF_PREC2                330
 #endif
 
 // PWR and LED driver