diff --git a/code/application/source/sf_app/code/source/battery/sf_battery.c b/code/application/source/sf_app/code/source/battery/sf_battery.c
index a005fe516..35cc1b7b7 100755
--- a/code/application/source/sf_app/code/source/battery/sf_battery.c
+++ b/code/application/source/sf_app/code/source/battery/sf_battery.c
@@ -212,7 +212,7 @@ UINT32 sf_adc_value_get(UINT32 mux, UINT32 *pval)
 {
 	static UINT8 getAdcFlg = 0;
 	//static UINT8 outputflag = 1;
-	UINT32 adc_device_delay_time_ms = 100;
+	UINT32 adc_device_delay_time_ms = 20;
     *pval = 0;
 
 	if(getAdcFlg)
@@ -349,7 +349,7 @@ UINT32 sf_battery_adc_value_get_once(void)
 	UINT32 liPolymerVoltageVal = 0;
 	UINT32 batVoltageVal = 0;
 	static UINT8 getBatAdcFlg = 0;
-	UIMenuStoreInfo *puiPara = sf_app_ui_para_get();
+	// UIMenuStoreInfo *puiPara = sf_app_ui_para_get();
 
 	if(getBatAdcFlg)
 		return SUCCESS;
@@ -361,8 +361,8 @@ UINT32 sf_battery_adc_value_get_once(void)
 	{
         dcVoltageVal = sf_battery_voltage_convert(24, 100, batAdc);
         //dcVoltageVal += 2;
-        if(puiPara->BatteryLogSwitch)
-		    printf("DC ADC Value:%d After Convert:%d(%d.%dV)\n",batAdc,dcVoltageVal,dcVoltageVal/10,dcVoltageVal%10);
+        // if(puiPara->BatteryLogSwitch)
+		//     printf("DC ADC Value:%d After Convert:%d(%d.%dV)\n",batAdc,dcVoltageVal,dcVoltageVal/10,dcVoltageVal%10);
 
     }
 	
@@ -370,8 +370,8 @@ UINT32 sf_battery_adc_value_get_once(void)
     {
         liPolymerVoltageVal = sf_battery_voltage_convert(24, 100, batAdc);
         //liPolymerVoltageVal += 2;
-        if(puiPara->BatteryLogSwitch)
-		    printf("Li ADC Value:%d After Convert:%d(%d.%dV)\n",batAdc,liPolymerVoltageVal,liPolymerVoltageVal/10,liPolymerVoltageVal%10);
+        // if(puiPara->BatteryLogSwitch)
+		//     printf("Li ADC Value:%d After Convert:%d(%d.%dV)\n",batAdc,liPolymerVoltageVal,liPolymerVoltageVal/10,liPolymerVoltageVal%10);
 
     }
 
@@ -379,15 +379,15 @@ UINT32 sf_battery_adc_value_get_once(void)
     {
         batVoltageVal = sf_aa_battery_voltage_convert(24, 100, batAdc);
         //batVoltageVal += 2;
-        if(puiPara->BatteryLogSwitch)
-		    printf("Bat ADC Value:%d After Convert:%d(%d.%dV)\n",batAdc,batVoltageVal,batVoltageVal/10,batVoltageVal%10);
+        // if(puiPara->BatteryLogSwitch)
+		//     printf("Bat ADC Value:%d After Convert:%d(%d.%dV)\n",batAdc,batVoltageVal,batVoltageVal/10,batVoltageVal%10);
     }
 
     if(sf_adc_value_get(SF_ADC_TEMP, &batAdc) == SUCCESS)
     {
         _TemperAdc = batAdc;
-        if(puiPara->BatteryLogSwitch)
-		    printf("_TemperAdc:%d \n",batAdc);
+        // if(puiPara->BatteryLogSwitch)
+		//     printf("_TemperAdc:%d \n",batAdc);
     }
 
 	_DcVoltageVal = dcVoltageVal;
@@ -768,45 +768,61 @@ SINT32 sf_battery_adc_value_get(void)
 
 	UINT32 dcTemp = 0;
 	UINT32 batTemp = 0;
-	UINT32 dcValueList = { 0 };
-	UINT32 batValueList = { 0 };
+    UINT32 LibatTemp = 0;
+    UINT8 LibatCnt = 0;
+    UINT8 batCnt = 0;
+    UINT32 temperValue = 0;
 
 	//SINT32 ret = FAIL;
 
 	//uiPara_t * puiPara = appUiParaGet();
 
-    for(readBatCnt = 0; readBatCnt < 10;) //get average value of 10 times.
+    for(readBatCnt = 0; readBatCnt < 5;) //get average value of 10 times.
     {
         if(sf_battery_adc_value_get_once() == SUCCESS)
         {
-            dcValueList = _DcVoltageVal;
-
+            dcTemp += _DcVoltageVal;
+            temperValue += _TemperAdc;
             if(_LiPolymerVoltageVal)
             {
-                batValueList = _LiPolymerVoltageVal;
+                LibatTemp += _LiPolymerVoltageVal;
+                LibatCnt++;
             }
             else
             {
-                batValueList = _BatVoltageVal;
+                batTemp += _BatVoltageVal;
+                batCnt++;
             }
 
-            dcTemp += dcValueList;
-            batTemp += batValueList;
-
             readBatCnt++;
 
-            sf_sleep_ms(100);
-            if(readBatCnt >= SF_READ_BAT_MAX)
+            //sf_sleep_ms(10);
+            if(readBatCnt >= 5)
             {
-                _DcVoltageVal = dcTemp / SF_READ_BAT_MAX;
+                _DcVoltageVal = dcTemp / 5;
+                _TemperAdc = temperValue/ 5;
+                
+                if(LibatCnt)
+                    _LiPolymerVoltageVal = LibatTemp / LibatCnt;
+                if(batCnt)
+                    _BatVoltageVal = batTemp / batCnt;
 
-                if(_LiPolymerVoltageVal)
-                {
-                    _LiPolymerVoltageVal = batTemp / SF_READ_BAT_MAX;
+                if((_DcVoltageVal > _LiPolymerVoltageVal) && (_DcVoltageVal >= _BatVoltageVal) && (_DcVoltageVal >= SF_DC_IN_VOLATAGE))
+                {	
+                    IsPowerDcIn = 1;
                 }
-                else if(_BatVoltageVal)
+                else
                 {
-                    _BatVoltageVal = batTemp / SF_READ_BAT_MAX;
+                    IsPowerDcIn = 0;
+                }
+                
+                if ((_LiPolymerVoltageVal > _BatVoltageVal))
+                {
+                    _BatVoltageVal = 0;
+                }
+                else
+                {
+                    _LiPolymerVoltageVal = 0;
                 }
             }
         }
@@ -842,7 +858,7 @@ void sf_battery_level_polling(void)
 	{
 		if(sf_battery_adc_value_get() == SUCCESS)
 		{
-            //sf_sleep_ms(100);
+            sf_sleep_ms(100);
 
 			dcTemp += _DcVoltageVal;
             temperValue += _TemperAdc;
@@ -1097,7 +1113,7 @@ void sf_view_osd_battery_draw(UINT8 bShow)
 UINT8 sf_battery_value_get(UINT8 nightMode)
 {
 	UINT8 value = 0;
-	UINT8 batteryVal = 0;
+	UINT32 batteryVal = 0;
 	
     UIMenuStoreInfo *puiPara = sf_app_ui_para_get();
 	if(IsPowerDcIn == 0)