diff --git a/overlay/frameworks/base/packages/SystemUI/res-keyguard/values/config.xml b/overlay/frameworks/base/packages/SystemUI/res-keyguard/values/config.xml
new file mode 100644
index 0000000000000000000000000000000000000000..b84a310165b45f829f9a6bf2c427e32216a8544f
--- /dev/null
+++ b/overlay/frameworks/base/packages/SystemUI/res-keyguard/values/config.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2009, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+-->
+
+<!-- These resources are around just to allow their values to be customized -->
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Threshold in micro watts above which a charger is rated as "fast"; 1.375 A @ 4.00 V = 5.50 W -->
+    <integer name="config_chargingFastThreshold">10800000</integer>
+</resources>