diff --git a/en/application-dev/reference/apis/js-apis-batteryStatistics.md b/en/application-dev/reference/apis/js-apis-batteryStatistics.md
index 89cd4ab39ee2d9a7c7e0a4f9b03a4755b55b864f..c2969b024889024afd1fc3178e5b61b77795d8f3 100644
--- a/en/application-dev/reference/apis/js-apis-batteryStatistics.md
+++ b/en/application-dev/reference/apis/js-apis-batteryStatistics.md
@@ -203,7 +203,7 @@ For details about the error codes, see [Thermal Manager Error Codes](../errorcod
```js
try {
var value = batteryStats.getHardwareUnitPowerValue(ConsumptionType.CONSUMPTION_TYPE_SCREEN);
- console.info('battery statistics percent of hardware is: ' + percent);
+ console.info('battery statistics value of hardware is: ' + value);
} catch(err) {
console.error('get battery statistics percent of hardware failed, err: ' + err);
}
@@ -243,7 +243,7 @@ For details about the error codes, see [Thermal Manager Error Codes](../errorcod
```js
try {
- var value = batteryStats.getHardwareUnitPowerPercent(ConsumptionType.CONSUMPTION_TYPE_SCREEN);
+ var percent = batteryStats.getHardwareUnitPowerPercent(ConsumptionType.CONSUMPTION_TYPE_SCREEN);
console.info('battery statistics percent of hardware is: ' + percent);
} catch(err) {
console.error('get battery statistics percent of hardware failed, err: ' + err);
diff --git a/en/application-dev/reference/apis/js-apis-system-battery.md b/en/application-dev/reference/apis/js-apis-system-battery.md
index d673a500027654075ff330c916cd22add25abaf6..25af13c0c39825138fe490b36abd7ad00157f1d9 100644
--- a/en/application-dev/reference/apis/js-apis-system-battery.md
+++ b/en/application-dev/reference/apis/js-apis-system-battery.md
@@ -44,7 +44,9 @@ battery.getStatus({
## GetStatusOptions
-Object that contains the API calling result.
+Obtains the object that contains the API calling result.
+
+**System capability**: SystemCapability.PowerManager.BatteryManager.Core
| Name | Type | Mandatory| Description |
| -------- | --------------------------------------------------- | ---- | ------------------------------------------------------------ |
@@ -56,7 +58,9 @@ Object that contains the API calling result.
Defines a response that returns the charging status and remaining power of the device.
-| Name| Type| Description|
-| -------- | -------- | -------- |
-| charging | boolean | Whether the battery is being charged.|
-| level | number | Current battery level, which ranges from **0.00** to **1.00**.|
+**System capability**: SystemCapability.PowerManager.BatteryManager.Core
+
+| Name| Type| Readable | Writable | Description|
+| -------- | -------- | -------- | -------- | -------- |
+| charging | boolean | Yes | No | Whether the battery is being charged.|
+| level | number | Yes | No | Current battery level, which ranges from **0.00** to **1.00**.|
diff --git a/en/application-dev/reference/apis/js-apis-system-brightness.md b/en/application-dev/reference/apis/js-apis-system-brightness.md
index 939e7d7021bc8f93ad7359004de58f525feeee05..bfe2cb2960ff66ca9bdec122283168a029f9f46a 100644
--- a/en/application-dev/reference/apis/js-apis-system-brightness.md
+++ b/en/application-dev/reference/apis/js-apis-system-brightness.md
@@ -45,7 +45,7 @@ Obtains the current screen brightness.
## brightness.setValue
-etValue(options?: SetBrightnessOptions): void
+setValue(options?: SetBrightnessOptions): void
Sets the screen brightness.
@@ -74,7 +74,7 @@ Sets the screen brightness.
## brightness.getMode
-getMode(options?: GetBrightnessModeOptions: void
+getMode(options?: GetBrightnessModeOptions): void
Obtains the screen brightness adjustment mode.
@@ -132,7 +132,8 @@ Sets the screen brightness adjustment mode.
setKeepScreenOn(options?: SetKeepScreenOnOptions): void
->This API is no longer maintained since API version 7. It is recommended that you use [window.setKeepScreenOn](js-apis-window.md#setkeepscreenon) instead.
+> NOTE
+> This API is no longer maintained since API version 7. It is recommended that you use [window.setKeepScreenOn](js-apis-window.md#setkeepscreenon) instead.
Sets whether to always keep the screen on. Call this API in **onShow()**.
@@ -161,6 +162,8 @@ Sets whether to always keep the screen on. Call this API in **onShow()**.
Defines the options for obtaining the screen brightness.
+**System capability**: SystemCapability.PowerManager.DisplayPowerManager
+
| Name | Type | Mandatory| Description |
| -------- | --------------------------------------------------------- | ---- | ------------------------------------------------------------ |
| success | (data: [BrightnessResponse](#brightnessresponse)) => void | No | Called when API call is successful. **data** is a return value of the [BrightnessResponse](#brightnessresponse) type.|
@@ -171,6 +174,8 @@ Defines the options for obtaining the screen brightness.
Defines the options for setting the screen brightness.
+**System capability**: SystemCapability.PowerManager.DisplayPowerManager
+
| Name | Type | Mandatory| Description |
| -------- | ------------------------------------ | ---- | ------------------------------------------------------------ |
| value | number | Yes | Screen brightness. The value is an integer ranging from **1** to **255**.
- If the value is less than or equal to **0**, value **1** will be used.
- If the value is greater than **255**, value **255** will be used.
- If the value contains decimals, the integral part of the value will be used. For example, if value **8.1** is set, value **8** will be used.|
@@ -182,13 +187,15 @@ Defines the options for setting the screen brightness.
Defines a response that returns the screen brightness.
-| Parameter| Type | Description|
-| -------- | -------- | -------- |
-| value | number | Screen brightness. The value ranges from 1 to 255.|
+| Parameter| Type | Readable | Writable | Description|
+| -------- | -------- | -------- | -------- | -------- |
+| value | number | Yes | No | Screen brightness. The value ranges from 1 to 255.|
## GetBrightnessModeOptions
-Defines the options for obtaining the screen brightness mode.
+Gets the options of the screen brightness mode.
+
+**System capability**: SystemCapability.PowerManager.DisplayPowerManager
| Name | Type | Mandatory| Description |
| -------- | ------------------------------------------------------------ | ---- | ------------------------------------------------------------ |
@@ -198,7 +205,9 @@ Defines the options for obtaining the screen brightness mode.
## SetBrightnessModeOptions
-Defines the options for setting the screen brightness mode.
+Sets the options of the screen brightness mode.
+
+**System capability**: SystemCapability.PowerManager.DisplayPowerManager
| Name | Type | Mandatory| Description |
| -------- | ------------------------------------ | ---- | ------------------------------------------------------ |
@@ -211,13 +220,15 @@ Defines the options for setting the screen brightness mode.
Defines a response that returns the screen brightness mode.
-| Name| Type | Description|
-| -------- | -------- | -------- |
-| mode | number | The value **0** indicates the manual adjustment mode, and the value **1** indicates the automatic adjustment mode.|
+| Parameter| Type | Readable | Writable | Description|
+| -------- | -------- | -------- | -------- | -------- |
+| mode | number | Yes | No | The value **0** indicates the manual adjustment mode, and the value **1** indicates the automatic adjustment mode.|
## SetKeepScreenOnOptions
-Defines the options for setting the screen to be steady on.
+Sets the options for keeping the screen steady on.
+
+**System capability**: SystemCapability.PowerManager.DisplayPowerManager
| Name | Type | Mandatory| Description |
| ------------ | ------------------------------------ | ---- | ------------------------------------------------------ |