diff --git a/src/config.h b/src/config.h
index 794488e..a9ea40c 100644
--- a/src/config.h
+++ b/src/config.h
@@ -30,7 +30,7 @@
 #define SLEEP_SOLAR_CURRENT    1
 
 /* Delay between state change and sleep state check (in ms). */
-#define SLEEP_STATE_DELAY      100
+#define SLEEP_STATE_DELAY    60000
 
 /* Delay between charging switch state change and sleep state check(in ms). */
 #define SLEEP_SWITCH_DELAY    1000