diff --git a/nx/include/switch/services/psm.h b/nx/include/switch/services/psm.h
index 942e98c0..3062e8c2 100644
--- a/nx/include/switch/services/psm.h
+++ b/nx/include/switch/services/psm.h
@@ -13,12 +13,19 @@ typedef enum {
     ChargerType_Usb = 2      ///< Other USB-C chargers
 } ChargerType;
 
+typedef enum {
+    PsmBatteryVoltageState_NeedsShutdown = 0,      ///< Power state should transition to shutdown
+    PsmBatteryVoltageState_NeedsSleep = 1,         ///< Power state should transition to sleep
+    PsmBatteryVoltageState_NoPerformanceBoost = 2, ///< Performance boost modes cannot be entered
+    PsmBatteryVoltageState_Normal = 3,             ///< Everything is normal
+} PsmBatteryVoltageState;
+
 Result psmInitialize(void);
 void psmExit(void);
 
 Result psmGetBatteryChargePercentage(u32 *out);
 Result psmGetChargerType(ChargerType *out);
-Result psmGetBatteryVoltageState(u32 *out);
+Result psmGetBatteryVoltageState(PsmBatteryVoltageState *out);
 
 /**
  * @brief Wrapper func which handles event setup.
diff --git a/nx/source/services/psm.c b/nx/source/services/psm.c
index 75df717f..24f5679e 100644
--- a/nx/source/services/psm.c
+++ b/nx/source/services/psm.c
@@ -95,8 +95,13 @@ Result psmGetChargerType(ChargerType *out) {
     return _psmGetOutU32(1, out);
 }
 
-Result psmGetBatteryVoltageState(u32 *out) {
-    return _psmGetOutU32(12, out);
+Result psmGetBatteryVoltageState(PsmBatteryVoltageState *out) {
+    u32 state;
+    Result rc = _psmGetOutU32(12, &state);
+    if (R_SUCCEEDED(rc)) {
+        *out = (PsmBatteryVoltageState)state;
+    }
+    return rc;
 }
 
 static Result _psmOpenSession(Service* out) {