diff --git a/freqtrade/data/history/featherdatahandler.py b/freqtrade/data/history/featherdatahandler.py
index 70d36628d..b8efe6d02 100644
--- a/freqtrade/data/history/featherdatahandler.py
+++ b/freqtrade/data/history/featherdatahandler.py
@@ -95,11 +95,11 @@ class FeatherDataHandler(IDataHandler):
         tradesdata = DataFrame(data, columns=DEFAULT_TRADES_COLUMNS)
         tradesdata.to_feather(filename, compression_level=9, compression='lz4')
 
-    def trades_append(self, pair: str, data: TradeList):
+    def trades_append(self, pair: str, data: DataFrame):
         """
         Append data to existing files
         :param pair: Pair - used for filename
-        :param data: List of Lists containing trade data,
+        :param data: Dataframe containing trades
                      column sequence as in DEFAULT_TRADES_COLUMNS
         """
         raise NotImplementedError()
diff --git a/freqtrade/data/history/hdf5datahandler.py b/freqtrade/data/history/hdf5datahandler.py
index c9e546eab..38747ed5f 100644
--- a/freqtrade/data/history/hdf5datahandler.py
+++ b/freqtrade/data/history/hdf5datahandler.py
@@ -115,11 +115,11 @@ class HDF5DataHandler(IDataHandler):
             format='table', data_columns=['timestamp']
         )
 
-    def trades_append(self, pair: str, data: TradeList):
+    def trades_append(self, pair: str, data: pd.DataFrame):
         """
         Append data to existing files
         :param pair: Pair - used for filename
-        :param data: List of Lists containing trade data,
+        :param data: Dataframe containing trades
                      column sequence as in DEFAULT_TRADES_COLUMNS
         """
         raise NotImplementedError()
diff --git a/freqtrade/data/history/idatahandler.py b/freqtrade/data/history/idatahandler.py
index a11c79bd9..fe2bb1427 100644
--- a/freqtrade/data/history/idatahandler.py
+++ b/freqtrade/data/history/idatahandler.py
@@ -180,11 +180,11 @@ class IDataHandler(ABC):
         """
 
     @abstractmethod
-    def trades_append(self, pair: str, data: TradeList):
+    def trades_append(self, pair: str, data: DataFrame):
         """
         Append data to existing files
         :param pair: Pair - used for filename
-        :param data: List of Lists containing trade data,
+        :param data: Dataframe containing trades
                      column sequence as in DEFAULT_TRADES_COLUMNS
         """
 
diff --git a/freqtrade/data/history/jsondatahandler.py b/freqtrade/data/history/jsondatahandler.py
index cd40da316..4e0a5dc1a 100644
--- a/freqtrade/data/history/jsondatahandler.py
+++ b/freqtrade/data/history/jsondatahandler.py
@@ -104,11 +104,11 @@ class JsonDataHandler(IDataHandler):
         filename = self._pair_trades_filename(self._datadir, pair)
         misc.file_dump_json(filename, data, is_zip=self._use_zip)
 
-    def trades_append(self, pair: str, data: TradeList):
+    def trades_append(self, pair: str, data: DataFrame):
         """
         Append data to existing files
         :param pair: Pair - used for filename
-        :param data: List of Lists containing trade data,
+        :param data: Dataframe containing trades
                      column sequence as in DEFAULT_TRADES_COLUMNS
         """
         raise NotImplementedError()
diff --git a/freqtrade/data/history/parquetdatahandler.py b/freqtrade/data/history/parquetdatahandler.py
index e6b2481d2..085ff8be6 100644
--- a/freqtrade/data/history/parquetdatahandler.py
+++ b/freqtrade/data/history/parquetdatahandler.py
@@ -95,11 +95,11 @@ class ParquetDataHandler(IDataHandler):
         # array
         # feather.write_feather(data, filename)
 
-    def trades_append(self, pair: str, data: TradeList):
+    def trades_append(self, pair: str, data: DataFrame):
         """
         Append data to existing files
         :param pair: Pair - used for filename
-        :param data: List of Lists containing trade data,
+        :param data: Dataframe containing trades
                      column sequence as in DEFAULT_TRADES_COLUMNS
         """
         raise NotImplementedError()
diff --git a/tests/data/test_datahandler.py b/tests/data/test_datahandler.py
index 36e69f4f8..b0c2149d4 100644
--- a/tests/data/test_datahandler.py
+++ b/tests/data/test_datahandler.py
@@ -291,7 +291,7 @@ def test_datahandler_ohlcv_append(datahandler, testdatadir, ):
 def test_datahandler_trades_append(datahandler, testdatadir):
     dh = get_datahandler(testdatadir, datahandler)
     with pytest.raises(NotImplementedError):
-        dh.trades_append('UNITTEST/ETH', [])
+        dh.trades_append('UNITTEST/ETH', DataFrame())
 
 
 def test_hdf5datahandler_trades_get_pairs(testdatadir):