diff --git a/common/charge_state_v2.c b/common/charge_state_v2.c
index 71d46265a5..cc145d6971 100644
--- a/common/charge_state_v2.c
+++ b/common/charge_state_v2.c
@@ -218,6 +218,9 @@ static void update_dynamic_battery_info(void)
 		batt_present = 0;
 	}
 
+	if (curr.batt.flags & EC_BATT_FLAG_INVALID_DATA)
+		tmp |= EC_BATT_FLAG_INVALID_DATA;
+
 	if (!(curr.batt.flags & BATT_FLAG_BAD_VOLTAGE))
 		*memmap_volt = curr.batt.voltage;
 
@@ -356,6 +359,9 @@ static void update_dynamic_battery_info(void)
 		batt_present = 0;
 	}
 
+	if (curr.batt.flags & EC_BATT_FLAG_INVALID_DATA)
+		tmp |= EC_BATT_FLAG_INVALID_DATA;
+
 	if (!(curr.batt.flags & BATT_FLAG_BAD_VOLTAGE))
 		base_battery_dynamic.actual_voltage = curr.batt.voltage;
 
diff --git a/include/ec_commands.h b/include/ec_commands.h
index 189618731a..20c29a6f7e 100644
--- a/include/ec_commands.h
+++ b/include/ec_commands.h
@@ -163,6 +163,8 @@
 #define EC_BATT_FLAG_DISCHARGING  0x04
 #define EC_BATT_FLAG_CHARGING     0x08
 #define EC_BATT_FLAG_LEVEL_CRITICAL 0x10
+/* Set if some of the dynamic data is invalid (or outdated). */
+#define EC_BATT_FLAG_INVALID_DATA 0x20
 
 /* Switch flags at EC_MEMMAP_SWITCHES */
 #define EC_SWITCH_LID_OPEN               0x01
@@ -4724,7 +4726,7 @@ struct __ec_align2 ec_response_battery_dynamic_info {
 	int16_t actual_current; /* Battery current (mA); negative=discharging */
 	int16_t remaining_capacity; /* Remaining capacity (mAh) */
 	int16_t full_capacity; /* Capacity (mAh, might change occasionally) */
-	int16_t flags; /* Flags, see BATT_FLAG_* in battery.h */
+	int16_t flags; /* Flags, see EC_BATT_FLAG_* */
 	int16_t desired_voltage; /* Charging voltage desired by battery (mV) */
 	int16_t desired_current; /* Charging current desired by battery (mA) */
 };