diff --git a/app/src/app_ble_service.c b/app/src/app_ble_service.c
index 77c9586..6d7cc28 100644
--- a/app/src/app_ble_service.c
+++ b/app/src/app_ble_service.c
@@ -321,7 +321,7 @@ static void prvf_process_ble_rx_data(void* p_event_data, uint16_t len) {
     receipt->drop_state1                  = 0x00;
     receipt->device_state0.sampling_state = (DeviceCtrl_now_state() == kdevice_state_sampling);
     receipt->device_state0.report_state   = m_realtime_report_state;
-    receipt->device_state0.low_battery    = (BoardBattery_get_battery_level() < 20);
+    receipt->device_state0.low_battery    = (BoardBattery_get_battery_level() < APP_LOW_BATTERY_WARNING_LIMIT);
     receipt->device_state0.full_storge    = (SampleDataMgr_storageIsFull());
 
     receipt->device_state1    = 0;
diff --git a/app/src/board/board.h b/app/src/board/board.h
index 272780e..563f7e5 100644
--- a/app/src/board/board.h
+++ b/app/src/board/board.h
@@ -68,12 +68,14 @@
 #define APP_MAX_EVEN_SIZE    MAX(APP_TIMER_SCHED_EVENT_DATA_SIZE, sizeof(app_event_t))
 #define APP_EVENT_QUEUE_SIZE 100
 
-#define APP_AUTO_SLEEP_TIMEOUT_MS (10 * 1000)
+#define APP_AUTO_SLEEP_TIMEOUT_MS (30 * 1000)  // 自动休眠时间
 #define APP_BYTE_EACH_FRAME       9
 #define APP_SENSOR_NUM            3
 
-#define APP_LOW_BATTERY_LIMIT 2
+#define APP_LOW_BATTERY_LIMIT          2   // 低电量关机阈值
+#define APP_LOW_BATTERY_POWER_ON_LIMIT 8   // 低电量关机阈值
+#define APP_LOW_BATTERY_WARNING_LIMIT  10  // 低电量事件上报阈值
 
-#define BLE_UNCONNECTED_OVERTIME_S 300
+#define BLE_UNCONNECTED_OVERTIME_S 300  // 蓝牙未连接_心跳超时判定时间
 
-#define ENABLE_AUTO_STOP_WHEN_BLE_DISCONNECTED 1
\ No newline at end of file
+#define ENABLE_AUTO_STOP_WHEN_BLE_DISCONNECTED 1  // 蓝牙断开自动停止采集
\ No newline at end of file
diff --git a/app/src/device_ctrl_service.c b/app/src/device_ctrl_service.c
index 1e7c7b5..ac6fd29 100644
--- a/app/src/device_ctrl_service.c
+++ b/app/src/device_ctrl_service.c
@@ -174,6 +174,9 @@ static void app_event_listener(void* p_event_data, uint16_t event_size) {  //
     } else if (zble_module_is_connected() && zdatachannel_last_rx_data_haspassed_s() >= BLE_UNCONNECTED_OVERTIME_S) {
       ZLOGI("auto sleep because ble unconnected");
       prvf_change_to_standby_state();
+    } else if (BoardBattery_get_battery_level() < APP_LOW_BATTERY_LIMIT) {
+      ZLOGI("auto sleep because low battery");
+      prvf_change_to_standby_state();
     }
 
     if (event->eventType == kevent_start_sample_cmd_event) {
@@ -211,7 +214,7 @@ static void app_event_listener(void* p_event_data, uint16_t event_size) {  //
 
     if (dropdata0 || dropdata1) {
       BoardBeepCtrl_setEffect(kBoardBeepEffect_continuousShortBeep);
-    }else{
+    } else {
       BoardBeepCtrl_setEffect(kBoardBeepEffect_none);
     }
 
@@ -225,6 +228,9 @@ static void app_event_listener(void* p_event_data, uint16_t event_size) {  //
     } else if (m_sample_duration_ms != 0 && DeviceCtrl_cur_state_haspassed_ms() > m_sample_duration_ms) {
       ZLOGI("stop sample because sample timeout");
       stopcapture = true;
+    } else if (BoardBattery_get_battery_level() < APP_LOW_BATTERY_LIMIT) {
+      ZLOGI("stop sample because low battery");
+      stopcapture = true;
     }
 #ifdef ENABLE_AUTO_STOP_WHEN_BLE_DISCONNECTED
     else if (zdatachannel_last_rx_data_haspassed_s() > BLE_UNCONNECTED_OVERTIME_S) {
@@ -294,7 +300,7 @@ void DeviceCtrl_init() {
   // BoardLight_blockFlash(3, 100);
 
   BoardBattery_load();
-  if (BoardBattery_get_battery_level() < APP_LOW_BATTERY_LIMIT) {
+  if (BoardBattery_get_battery_level() < APP_LOW_BATTERY_POWER_ON_LIMIT) {
     BoardLight_blockFlash(3, 100);
 
     // 系统进入深度睡眠,进入深度睡眠前，使能唤醒引脚