diff --git a/include/batteryservice/BatteryService.h b/include/batteryservice/BatteryService.h
new file mode 100644
index 0000000..855262b
--- /dev/null
+++ b/include/batteryservice/BatteryService.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#ifndef ANDROID_BATTERYSERVICE_H
+#define ANDROID_BATTERYSERVICE_H
+
+#include <binder/Parcel.h>
+#include <utils/Errors.h>
+#include <utils/String8.h>
+
+namespace android {
+
+// must be kept in sync with definitions in BatteryManager.java
+enum {
+    BATTERY_STATUS_UNKNOWN = 1, // equals BatteryManager.BATTERY_STATUS_UNKNOWN constant
+    BATTERY_STATUS_CHARGING = 2, // equals BatteryManager.BATTERY_STATUS_CHARGING constant
+    BATTERY_STATUS_DISCHARGING = 3, // equals BatteryManager.BATTERY_STATUS_DISCHARGING constant
+    BATTERY_STATUS_NOT_CHARGING = 4, // equals BatteryManager.BATTERY_STATUS_NOT_CHARGING constant
+    BATTERY_STATUS_FULL = 5, // equals BatteryManager.BATTERY_STATUS_FULL constant
+};
+
+// must be kept in sync with definitions in BatteryManager.java
+enum {
+    BATTERY_HEALTH_UNKNOWN = 1, // equals BatteryManager.BATTERY_HEALTH_UNKNOWN constant
+    BATTERY_HEALTH_GOOD = 2, // equals BatteryManager.BATTERY_HEALTH_GOOD constant
+    BATTERY_HEALTH_OVERHEAT = 3, // equals BatteryManager.BATTERY_HEALTH_OVERHEAT constant
+    BATTERY_HEALTH_DEAD = 4, // equals BatteryManager.BATTERY_HEALTH_DEAD constant
+    BATTERY_HEALTH_OVER_VOLTAGE = 5, // equals BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE constant
+    BATTERY_HEALTH_UNSPECIFIED_FAILURE = 6, // equals BatteryManager.BATTERY_HEALTH_UNSPECIFIED_FAILURE constant
+    BATTERY_HEALTH_COLD = 7, // equals BatteryManager.BATTERY_HEALTH_COLD constant
+};
+
+struct BatteryProperties {
+    bool chargerAcOnline;
+    bool chargerUsbOnline;
+    bool chargerWirelessOnline;
+    int batteryStatus;
+    int batteryHealth;
+    bool batteryPresent;
+    int batteryLevel;
+    int batteryVoltage;
+    int batteryTemperature;
+    String8 batteryTechnology;
+
+    status_t writeToParcel(Parcel* parcel) const;
+    status_t readFromParcel(Parcel* parcel);
+};
+
+}; // namespace android
+
+#endif // ANDROID_BATTERYSERVICE_H
diff --git a/include/batteryservice/IBatteryPropertiesListener.h b/include/batteryservice/IBatteryPropertiesListener.h
new file mode 100644
index 0000000..b02d8e9
--- /dev/null
+++ b/include/batteryservice/IBatteryPropertiesListener.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#ifndef ANDROID_IBATTERYPROPERTIESLISTENER_H
+#define ANDROID_IBATTERYPROPERTIESLISTENER_H
+
+#include <binder/IBinder.h>
+#include <binder/IInterface.h>
+
+#include <batteryservice/BatteryService.h>
+
+namespace android {
+
+// must be kept in sync with interface defined in IBatteryPropertiesListener.aidl
+enum {
+        TRANSACT_BATTERYPROPERTIESCHANGED = IBinder::FIRST_CALL_TRANSACTION,
+};
+
+// ----------------------------------------------------------------------------
+
+class IBatteryPropertiesListener : public IInterface {
+public:
+    DECLARE_META_INTERFACE(BatteryPropertiesListener);
+
+    virtual void batteryPropertiesChanged(struct BatteryProperties props) = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_IBATTERYPROPERTIESLISTENER_H
diff --git a/include/batteryservice/IBatteryPropertiesRegistrar.h b/include/batteryservice/IBatteryPropertiesRegistrar.h
new file mode 100644
index 0000000..8d28b1d
--- /dev/null
+++ b/include/batteryservice/IBatteryPropertiesRegistrar.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#ifndef ANDROID_IBATTERYPROPERTIESREGISTRAR_H
+#define ANDROID_IBATTERYPROPERTIESREGISTRAR_H
+
+#include <binder/IInterface.h>
+#include <batteryservice/IBatteryPropertiesListener.h>
+
+namespace android {
+
+// must be kept in sync with interface defined in IBatteryPropertiesRegistrar.aidl
+enum {
+    REGISTER_LISTENER = IBinder::FIRST_CALL_TRANSACTION,
+    UNREGISTER_LISTENER,
+};
+
+class IBatteryPropertiesRegistrar : public IInterface {
+public:
+    DECLARE_META_INTERFACE(BatteryPropertiesRegistrar);
+
+    virtual void registerListener(const sp<IBatteryPropertiesListener>& listener) = 0;
+    virtual void unregisterListener(const sp<IBatteryPropertiesListener>& listener) = 0;
+};
+
+class BnBatteryPropertiesRegistrar : public BnInterface<IBatteryPropertiesRegistrar> {
+public:
+    virtual status_t onTransact(uint32_t code, const Parcel& data,
+                                Parcel* reply, uint32_t flags = 0);
+};
+
+}; // namespace android
+
+#endif // ANDROID_IBATTERYPROPERTIESREGISTRAR_H