diff --git a/api/@ohos.batteryStatistics.d.ts b/api/@ohos.batteryStatistics.d.ts
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+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * 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.
+ */
+
+import { AsyncCallback } from "./basic";
+
+/**
+ * Provides methods to get power consumption information.
+ *
+ * @syscap SystemCapability.PowerManager.BatteryStatistics
+ * @systemapi
+ * @since 8
+ */
+declare namespace batteryStats {
+    /**
+     * Describes the consumption type.
+     *
+     * @systemapi
+     * @since 8
+     */
+    export enum ConsumptionType {
+        /** Indicates an invalid consumption type */
+        CONSUMPTION_TYPE_INVALID = -17,
+
+        /** Indicates the battery power consumption generated by APP */
+        CONSUMPTION_TYPE_APP,
+
+        /** Indicates the battery power consumption generated by bluetooth */
+        CONSUMPTION_TYPE_BLUETOOTH,
+
+        /** Indicates the battery power consumption generated when the CPU is idle */
+        CONSUMPTION_TYPE_IDLE,
+
+        /** Indicates the battery power consumption generated when phone call is active */
+        CONSUMPTION_TYPE_PHONE,
+
+        /** Indicates the battery power consumption generated by radio */
+        CONSUMPTION_TYPE_RADIO,
+
+        /** Indicates the battery power consumption generated by screen */
+        CONSUMPTION_TYPE_SCREEN,
+
+        /** Indicates the battery power consumption generated by user */
+        CONSUMPTION_TYPE_USER,
+
+        /** Indicates the battery power consumption generated by WIFI */
+        CONSUMPTION_TYPE_WIFI
+    }
+
+    /**
+     * Obtains the power consumption information list.
+     *
+     * @return Returns power consumption information list of a device.
+     * @systemapi
+     * @since 8
+     */
+    function getBatteryStats(): Promise<Array<BatteryStatsInfo>>;
+    function getBatteryStats(callback: AsyncCallback<Array<BatteryStatsInfo>>): void;
+
+    /**
+     * Obtains power consumption information(Mah) for a given uid.
+     *
+     * @param uid Indicates the uid.
+     * @return Returns power consumption information(Mah).
+     * @systemapi
+     * @since 8
+     */
+    function getAppPowerValue(uid: number): number;
+
+    /**
+     * Obtains power consumption information(Percent) for a given uid.
+     *
+     * @param uid Indicates the uid.
+     * @return Returns power consumption information(Percent).
+     * @systemapi
+     * @since 8
+     */
+    function getAppPowerPercent(uid: number): number;
+
+    /**
+     * Obtains power consumption information(Mah) for a given type.
+     *
+     * @param ConsumptionType Indicates the hardware type.
+     * @return Returns power consumption information(Mah).
+     * @systemapi
+     * @since 8
+     */
+    function getHardwareUnitPowerValue(type: ConsumptionType): number;
+
+    /**
+     * Obtains power consumption information(Percent) for a given type.
+     *
+     * @param ConsumptionType Indicates the hardware type.
+     * @return Returns power consumption information(Percent).
+     * @systemapi
+     * @since 8
+     */
+    function getHardwareUnitPowerPercent(type: ConsumptionType): number;
+
+    /**
+     * Contains power consumption information of a device.
+     *
+     * <p>Power consumption information includes the uid, type and power consumption value.
+     *
+     * @systemapi
+     * @since 8
+     */
+    interface BatteryStatsInfo {
+        /** The uid related with the power consumption info. */
+        uid: number;
+
+        /** The type related with the power consumption info. */
+        type: ConsumptionType;
+
+        /** The power consumption value(mah). */
+        power: number;
+    }
+}
+export default batteryStats;
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