diff --git a/ch32v-insert-coin/src/main.rs b/ch32v-insert-coin/src/main.rs
index c92f562..c628f65 100644
--- a/ch32v-insert-coin/src/main.rs
+++ b/ch32v-insert-coin/src/main.rs
@@ -353,7 +353,7 @@ fn app_main(mut p: hal::Peripherals, app_settings: Settings) -> Settings {
         led1_timer_ms: 100,
         // 4 hours:
         // shutdown_timer_s: 1,
-        shutdown_timer_s: 4 * 60 * 60 * 30 / 100,
+        shutdown_timer_s: 4 * 60 * 60 * 10 / 100,
         // led2_timer_ms: 100,
     };