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 b5954dddb..0302e2229 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
@@ -104,7 +104,10 @@ UINT32 sf_battery_voltage_convert(UINT32 resistanceGnd, UINT32 resistanceVin, UI
 
 	//volt = 27  * adcVal * (resistanceGnd + resistanceVin) / resistanceGnd / 511;
 	//volt = 27  * adcVal * (resistanceGnd + resistanceVin) / resistanceGnd / 2696;
-    volt = (27  * adcVal + 554) / 539;
+    if(adcVal)
+    {
+        volt = (27  * adcVal + 554) / 539;
+    }
 	return volt;
 }
 
@@ -126,7 +129,10 @@ UINT32 sf_aa_battery_voltage_convert(UINT32 resistanceGnd, UINT32 resistanceVin,
 	 */
 
 	//volt = 27  * adcVal * (resistanceGnd + resistanceVin) / resistanceGnd / 511;
-	volt = (27  * adcVal + 3097) / 531;
+    if(adcVal)
+    {
+	    volt = (27  * adcVal + 3097) / 531;
+    }
 	return volt;
 }
 
@@ -136,7 +142,10 @@ UINT32 sf_battery_convert_to_adc(UINT32 resistanceGnd, UINT32 resistanceVin, UIN
 
 	//adcVal = volt * resistanceGnd * 511 / 27 / (resistanceGnd + resistanceVin);
 	//adcVal = volt * resistanceGnd * 2696 / 27 / (resistanceGnd + resistanceVin);
-    adcVal = (volt * 539 - 554) / 27;
+    if(volt)
+    {
+        adcVal = (volt * 539 - 554) / 27;
+    }
 	return adcVal;
 }
 
@@ -146,7 +155,10 @@ UINT32 sf_aa_battery_convert_to_adc(UINT32 resistanceGnd, UINT32 resistanceVin,
 
 	//adcVal = volt * resistanceGnd * 511 / 27 / (resistanceGnd + resistanceVin);
 	//adcVal = volt * resistanceGnd * 2696 / 27 / (resistanceGnd + resistanceVin);
-    adcVal = (volt * 531 - 3097) / 27;
+    if(volt)
+    {
+        adcVal = (volt * 531 - 3097) / 27;
+    }
 	return adcVal;
 }
 UINT32 sf_get_max_value(UINT32 *_ValueList)
diff --git a/rtos/code/driver/na51089/source/mcu/sf_battery.c b/rtos/code/driver/na51089/source/mcu/sf_battery.c
index 82e38f313..68c0861ba 100755
--- a/rtos/code/driver/na51089/source/mcu/sf_battery.c
+++ b/rtos/code/driver/na51089/source/mcu/sf_battery.c
@@ -108,7 +108,10 @@ UINT32 sf_battery_voltage_convert(UINT32 resistanceGnd, UINT32 resistanceVin, UI
 
 	//volt = 27  * adcVal * (resistanceGnd + resistanceVin) / resistanceGnd / 511;
 	//volt = 27  * adcVal * (resistanceGnd + resistanceVin) / resistanceGnd / 2696;
-    volt = (27  * adcVal + 554) / 539;
+    if(adcVal)
+    {
+        volt = (27  * adcVal + 554) / 539;
+    }
 	return volt;
 }
 
@@ -130,7 +133,10 @@ UINT32 sf_aa_battery_voltage_convert(UINT32 resistanceGnd, UINT32 resistanceVin,
 	 */
 
 	//volt = 27  * adcVal * (resistanceGnd + resistanceVin) / resistanceGnd / 511;
-	volt = (27  * adcVal + 3097) / 531;
+    if(adcVal)
+    {
+	    volt = (27  * adcVal + 3097) / 531;
+    }
 	return volt;
 }
 
@@ -140,7 +146,10 @@ UINT32 sf_battery_convert_to_adc(UINT32 resistanceGnd, UINT32 resistanceVin, UIN
 
 	//adcVal = volt * resistanceGnd * 511 / 27 / (resistanceGnd + resistanceVin);
 	//adcVal = volt * resistanceGnd * 2696 / 27 / (resistanceGnd + resistanceVin);
-    adcVal = (volt * 539 - 554) / 27;
+    if(volt)
+    {
+        adcVal = (volt * 539 - 554) / 27;
+    }
 	return adcVal;
 }
 
@@ -150,7 +159,10 @@ UINT32 sf_aa_battery_convert_to_adc(UINT32 resistanceGnd, UINT32 resistanceVin,
 
 	//adcVal = volt * resistanceGnd * 511 / 27 / (resistanceGnd + resistanceVin);
 	//adcVal = volt * resistanceGnd * 2696 / 27 / (resistanceGnd + resistanceVin);
-    adcVal = (volt * 531 - 3097) / 27;
+    if(volt)
+    {
+        adcVal = (volt * 531 - 3097) / 27;
+    }
 	return adcVal;
 }
 UINT32 sf_get_max_value(UINT32 *_ValueList)
@@ -1659,9 +1671,14 @@ void sf_BatteryInfoSave(char *name, FST_FILE fd)
     }*/
     //printf("fileName:%s\n",SF_BATTERY_TEST_FILE);
     //fd = FileSys_OpenFile(SF_BATTERY_TEST_FILE, FST_OPEN_ALWAYS | FST_OPEN_WRITE);
-
-	LibatAdc = sf_battery_convert_to_adc(24, 100, LiPolymerVoltageValTest);
-	batAdc = sf_battery_convert_to_adc(24, 100, BatVoltageValTest);
+    if(LiPolymerVoltageValTest)
+    {
+	    LibatAdc = sf_battery_convert_to_adc(24, 100, LiPolymerVoltageValTest);
+    }
+    if(BatVoltageValTest)
+    {
+	    batAdc = sf_aa_battery_convert_to_adc(24, 100, BatVoltageValTest);
+    }
 
 
 	sprintf(tmpBuf, "%s BatAdc=%lu  BatVal=%lu  LiBatAdc=%lu  LiBatVal=%lu TemperAdc=%lu\r\n", name, batAdc, BatVoltageValTest, LibatAdc, LiPolymerVoltageValTest, TemperAdc);