1 files changed, 1 insertions, 1 deletions

diff --git a/firmware/export/adc.h b/firmware/export/adc.h
index a18cb1995a..40bc3e108a 100644
--- a/firmware/export/adc.h
+++ b/firmware/export/adc.h
@@ -63,7 +63,7 @@
 #define ADC_BUTTON_ROW2         5 /* Used for scanning the keys, different
                                      voltages for different keys */
 #define ADC_UNREG_POWER         6 /* Battery voltage with a better scaling */
-#define ADC_EXT_POWER           7 /* The external power voltage, V=X*0.0148 */
+#define ADC_EXT_POWER           7 /* The external power voltage, 0v or 2.7v */
 
 #endif