diff --git a/docs/features/custom_pollers.md b/docs/features/custom_pollers.md
index 06602d5..3fea24a 100644
--- a/docs/features/custom_pollers.md
+++ b/docs/features/custom_pollers.md
@@ -39,6 +39,10 @@ class ScrapliPoller(CustomPoller):
         return resp.result
 ```
 
+!!! note
+    Be aware that every poller class instance is usually responsible for interaction with multiple devices. Hence, do not use poller fields for storing device-specific parameters.
+
+
 ### Filling PollerInfo
 
 Poller Info is required to tell Validity about your custom poller.
diff --git a/validity/pollers/base.py b/validity/pollers/base.py
index 9e56ebc..2f8acf3 100644
--- a/validity/pollers/base.py
+++ b/validity/pollers/base.py
@@ -67,8 +67,8 @@ def poll(self, devices: Iterable["VDevice"]) -> Iterator[CommandResult | Polling
 
 class DriverMixin:
     driver_factory: Callable  # Network driver class, e.g. netmiko.ConnectHandler
-    driver_connect_method: str
-    driver_disconnect_method: str
+    driver_connect_method: str = ""
+    driver_disconnect_method: str = ""
 
     def connect(self, credentials: dict[str, Any]):
         driver = type(self).driver_factory(**credentials)
@@ -111,7 +111,7 @@ class CustomPoller(ConsecutivePoller):
     Base class for creating user-defined pollers
     To define your own poller override the following attributes:
     - driver_factory - class/function for creating connection to particular device
-    - host_param_name - name of the driver_factory parameter, which holds device IP address
+    - host_param_name - name of the driver parameter which holds device IP address
     - poll_one_command() - method for sending one particular command to device and retrieving the result
     - driver_connect_method - optional driver method name to initiate the connection
     - driver_disconnect_method - optional driver method name to gracefully terminate the connection
diff --git a/validity/tests/test_pollers.py b/validity/tests/test_pollers.py
index 898642b..15cc74d 100644
--- a/validity/tests/test_pollers.py
+++ b/validity/tests/test_pollers.py
@@ -3,12 +3,26 @@
 
 import pytest
 
-from validity.pollers import NetmikoPoller, RequestsPoller
+from validity.models.polling import Command
+from validity.pollers import CustomPoller, NetmikoPoller, RequestsPoller
 from validity.pollers.factory import PollerChoices
 from validity.pollers.http import HttpDriver
 from validity.settings import PollerInfo
 
 
+@pytest.fixture
+def custom_poller():
+    class MyCustomPoller(CustomPoller):
+        driver_factory = Mock(name="driver_factory")
+        driver_connect_method = "con"
+        driver_disconnect_method = "dis"
+
+        def poll_one_command(self, driver: time.Any, command: Command) -> str:
+            return super().poll_one_command(driver, command)
+
+    return MyCustomPoller
+
+
 class TestNetmikoPoller:
     @pytest.fixture
     def get_mocked_poller(self, monkeypatch):
@@ -27,13 +41,11 @@ def _get_device(primary_ip):
         return _get_device
 
     @pytest.mark.django_db
-    def test_get_driver(self, get_mocked_poller, get_mocked_device):
+    def test_get_credentials(self, get_mocked_poller, get_mocked_device):
         credentials = {"user": "admin", "password": "1234"}
         poller = get_mocked_poller(credentials, [], Mock())
         device = get_mocked_device("1.1.1.1")
         assert poller.get_credentials(device) == credentials | {poller.host_param_name: "1.1.1.1"}
-        assert poller.get_driver(device) == poller.driver_factory.return_value
-        poller.driver_factory.assert_called_once_with(**credentials, **{poller.host_param_name: "1.1.1.1"})
 
     def test_poll_one_command(self, get_mocked_poller):
         poller = get_mocked_poller({}, [], Mock())