diff --git a/docs/en/api/power.md b/docs/en/api/power.md
index ef3e2de9..8e5c47b0 100644
--- a/docs/en/api/power.md
+++ b/docs/en/api/power.md
@@ -131,11 +131,18 @@ This function checks the state of the charge
 **Definition:**
 
 ```arduino
-bool canControl(){
+bool isCharging(){
 	uint8_t data;
 	Wire.beginTransmission(IP5306_ADDR);
 	Wire.write(IP5306_REG_READ0);
-	return(Wire.endTransmission()==0);
+	Wire.endTransmission(false);
+	if(Wire.requestFrom(IP5306_ADDR, 1))
+	{
+		data = Wire.read();
+		if (data & (1 << CHARGE_FULL_BIT)) return true;
+		else return false;
+	}
+	return false;
 }
 ```
 
diff --git a/docs/ja/api/power.md b/docs/ja/api/power.md
index f9949d96..5ae62b46 100644
--- a/docs/ja/api/power.md
+++ b/docs/ja/api/power.md
@@ -131,11 +131,18 @@ bool canControl(){
 **定義:**
 
 ```arduino
-bool canControl(){
+bool isCharging(){
 	uint8_t data;
 	Wire.beginTransmission(IP5306_ADDR);
 	Wire.write(IP5306_REG_READ0);
-	return(Wire.endTransmission()==0);
+	Wire.endTransmission(false);
+	if(Wire.requestFrom(IP5306_ADDR, 1))
+	{
+		data = Wire.read();
+		if (data & (1 << CHARGE_FULL_BIT)) return true;
+		else return false;
+	}
+	return false;
 }
 ```
 
diff --git a/docs/zh_CN/api/power.md b/docs/zh_CN/api/power.md
index 3b1e5f26..c8ac5461 100644
--- a/docs/zh_CN/api/power.md
+++ b/docs/zh_CN/api/power.md
@@ -121,11 +121,18 @@ bool canControl(){
 **函数实现:**
 
 ```arduino
-bool canControl(){
+bool isCharging(){
 	uint8_t data;
 	Wire.beginTransmission(IP5306_ADDR);
 	Wire.write(IP5306_REG_READ0);
-	return(Wire.endTransmission()==0);
+	Wire.endTransmission(false);
+	if(Wire.requestFrom(IP5306_ADDR, 1))
+	{
+		data = Wire.read();
+		if (data & (1 << CHARGE_FULL_BIT)) return true;
+		else return false;
+	}
+	return false;
 }
 ```