diff --git a/universal7885-common/apps/SamsungParts/src/com/eurekateam/samsungextras/interfaces/Battery.kt b/universal7885-common/apps/SamsungParts/src/com/eurekateam/samsungextras/interfaces/Battery.kt
index 3f37498..a3206f4 100644
--- a/universal7885-common/apps/SamsungParts/src/com/eurekateam/samsungextras/interfaces/Battery.kt
+++ b/universal7885-common/apps/SamsungParts/src/com/eurekateam/samsungextras/interfaces/Battery.kt
@@ -39,7 +39,7 @@ class Battery {
             return mBattery.getBatteryStats(BatterySys.FASTCHARGE) == 1
         }
         set(k) {
-            mBattery.setBatteryWritable(BatterySys.FASTCHARGE, k)
+            mBattery.setBatteryWritable(BatterySys.FASTCHARGE, !k)
         }
 
     fun getGeneralBatteryStats(id: BatteryIds): Int = when (id) {