diff --git a/Vcc.cpp b/Vcc.cpp
index 8dbcbe3..2316e63 100644
--- a/Vcc.cpp
+++ b/Vcc.cpp
@@ -63,6 +63,9 @@ float Vcc::Read_Volts(void)
   // Apply compensation
   vcc *= m_correction;
 
+  //to fix lowpower drain, ADMUX is changed again.
+  ADMUX = _BV(REFS1); //fixes readVcc current drain in lowPower
+
   return vcc;
 }