diff --git a/firmware/drivers/power.c b/firmware/drivers/power.c
index 9ddbbdbbb2..09a4e76935 100644
--- a/firmware/drivers/power.c
+++ b/firmware/drivers/power.c
@@ -72,6 +72,17 @@ void ide_power_enable(bool on)
 #endif
 }
 
+void power_off(void)
+{
+#ifdef ARCHOS_RECORDER
+    PBDR &= ~PBDR_BTN_OFF;
+    PBIOR |= PBDR_BTN_OFF;
+#else
+    PADR &= ~0x800;
+    PAIOR |= 0x800;
+#endif
+}
+
 #else
 
 bool charger_inserted(void)
@@ -90,4 +101,8 @@ void charger_enable(bool on)
     on = on;
 }
 
+void power_off(void)
+{
+}
+
 #endif /* SIMULATOR */
diff --git a/firmware/drivers/power.h b/firmware/drivers/power.h
index 819c1983d9..4b08648112 100644
--- a/firmware/drivers/power.h
+++ b/firmware/drivers/power.h
@@ -21,13 +21,14 @@
 
 #define BATTERY_LEVEL_SHUTDOWN (4500000 / BATTERY_SCALE_FACTOR) /* 4.5V */
 #define BATTERY_LEVEL_DANGEROUS (4750000 / BATTERY_SCALE_FACTOR) /* 4.75V */
-#define BATTERY_LEVEL_FULL (5550000 / BATTERY_SCALE_FACTOR) /* 5.55V */
+#define BATTERY_LEVEL_FULL (5300000 / BATTERY_SCALE_FACTOR) /* 5.3V */
 
 #define BATTERY_RANGE (BATTERY_LEVEL_FULL - BATTERY_LEVEL_SHUTDOWN)
 
 bool charger_inserted(void);
 void charger_enable(bool on);
 void ide_power_enable(bool on);
+void power_off(void);
 
 /* Returns battery level in percent */
 int battery_level(void);