diff --git a/rtos/code/driver/na51089/source/mcu/sf_battery.c b/rtos/code/driver/na51089/source/mcu/sf_battery.c
index 55cafa9f1..82e38f313 100755
--- a/rtos/code/driver/na51089/source/mcu/sf_battery.c
+++ b/rtos/code/driver/na51089/source/mcu/sf_battery.c
@@ -351,7 +351,7 @@ UINT32 sf_battery_adc_value_get_once(void)
             if(puiPara->BatteryLogSwitch)
                 printf("DC ADC Value:%lu After Convert:%lu(%lu.%luV)\n",batAdc,dcVoltageVal,dcVoltageVal/10,dcVoltageVal%10);
         }
-        if(batAdc <= 0)
+        if(batAdc <= 100)
         {
             getDcFlg--;
         }
@@ -369,7 +369,7 @@ UINT32 sf_battery_adc_value_get_once(void)
             if(puiPara->BatteryLogSwitch)
                 printf("Li ADC Value:%lu After Convert:%lu(%lu.%luV)\n",batAdc,liPolymerVoltageVal,liPolymerVoltageVal/10,liPolymerVoltageVal%10);
         }
-        if(batAdc <= 0)
+        if(batAdc <= 100)
         {
             getLiBatFlg--;
         }
@@ -388,7 +388,7 @@ UINT32 sf_battery_adc_value_get_once(void)
                 printf("Bat ADC Value:%lu After Convert:%lu(%lu.%luV)\n",batAdc,batVoltageVal,batVoltageVal/10,batVoltageVal%10);
     
         }
-        if(batAdc <= 0)
+        if(batAdc <= 100)
         {
             getBatFlg--;
         }
@@ -950,7 +950,7 @@ void sf_battery_thread_init(void)
 
 	vos_flag_create(&FLG_ID_SF_BSTTERY, NULL, "FLG_ID_SF_BSTTERY");
 	/*thread creat*/
-   s_handle_batt = vos_task_create(sf_battery_check_thread, NULL, "sf_battery_check_thread", 25, 2048);
+   s_handle_batt = vos_task_create(sf_battery_check_thread, NULL, "sf_battery_check_thread", 18, 2048);
 	vos_task_resume(s_handle_batt);
 	printf("[%s:%d] e\n", __FUNCTION__, __LINE__);
 }