diff --git a/variants/thinknode_m6/ThinkNodeM6Board.cpp b/variants/thinknode_m6/ThinkNodeM6Board.cpp
index 8ebae64c6..f83f274f9 100644
--- a/variants/thinknode_m6/ThinkNodeM6Board.cpp
+++ b/variants/thinknode_m6/ThinkNodeM6Board.cpp
@@ -15,6 +15,9 @@ void ThinkNodeM6Board::begin() {
   digitalWrite(P_LORA_TX_LED, LOW);
 #endif
 
+  pinMode(EXT_PWR_DETECT, INPUT);
+  pinMode(EXT_CHRG_DETECT, INPUT);
+
   delay(10); // give sx1262 some time to power up
 }