Minor fixes

app/Battery/BatteryControl.cs

@@ -0,0 +1,33 @@
+using GHelper.Helpers;
+using System.Diagnostics;
+
+namespace GHelper.Battery
+{
+    internal class BatteryControl
+    {
+
+        public static void SetBatteryChargeLimit(int limit = -1)
+        {
+
+            if (limit < 0) limit = AppConfig.Get("charge_limit");
+            if (limit < 40 || limit > 100) return;
+
+            Program.settingsForm.VisualiseBattery(limit);
+
+            Program.acpi.DeviceSet(AsusACPI.BatteryLimit, limit, "BatteryLimit");
+
+            try
+            {
+                OptimizationService.SetChargeLimit(limit);
+            }
+            catch (Exception ex)
+            {
+                Debug.WriteLine(ex);
+            }
+
+            AppConfig.Set("charge_limit", limit);
+
+        }
+
+    }
+}