diff --git a/ocpp/v201/call_result.py b/ocpp/v201/call_result.py
index f603b1cba..0150f207f 100644
--- a/ocpp/v201/call_result.py
+++ b/ocpp/v201/call_result.py
@@ -334,7 +334,7 @@ class SendLocalList:
 
 @dataclass
 class SetChargingProfile:
-    status: enums.ChargingProfileStatus
+    status: enums.ChargingProfileStatusEnumType
     status_info: Optional[datatypes.StatusInfoType] = None
     custom_data: Optional[Dict[str, Any]] = None
 
diff --git a/ocpp/v201/datatypes.py b/ocpp/v201/datatypes.py
index 4150dc0f4..a2e650289 100644
--- a/ocpp/v201/datatypes.py
+++ b/ocpp/v201/datatypes.py
@@ -555,7 +555,7 @@ class UnitOfMeasureType:
     UnitOfMeasureType is used by: SampledValueType
     """
 
-    unit: Optional[Union[enums.StandardizedUnitsOfMeasureEnumType, str]] = None
+    unit: Optional[Union[enums.StandardizedUnitsOfMeasureType, str]] = None
     multiplier: Optional[int] = None
 
 
@@ -642,7 +642,7 @@ class VPNType:
     user: str
     password: str
     key: str
-    type: enums.VPNType
+    type: enums.VPNEnumType
     group: Optional[str] = None
 
 
diff --git a/ocpp/v201/enums.py b/ocpp/v201/enums.py
index e9a2cbb30..12e19d05f 100644
--- a/ocpp/v201/enums.py
+++ b/ocpp/v201/enums.py
@@ -10,26 +10,6 @@ class StrEnum(str, Enum):  # pragma: no cover
         pass  # pragma: no cover
 
 
-class DeprecatedEnumWrapper:
-    """
-    Since enums can't be subclassed in order to add a deprecation warning,
-    this class is included to help warn users of deprecated enums.
-    """
-
-    def __init__(self, enum_class, alias_name):
-        self.enum_class = enum_class
-        self.alias_name = alias_name
-
-    def __getattr__(self, name):
-        warn(
-            (
-                f"Enum '{self.alias_name}' is deprecated, "
-                + "instead use '{self.enum_class.__name__}'"
-            )
-        )
-        return getattr(self.enum_class, name)
-
-
 class Action(StrEnum):
     """An Action is a required part of a Call message."""
 
@@ -365,7 +345,7 @@ class ChargingProfilePurposeEnumType(StrEnum):
     tx_profile = "TxProfile"
 
 
-class ChargingProfileStatus(StrEnum):
+class ChargingProfileStatusEnumType(StrEnum):
     """
     Status returned in response to SetChargingProfile.req.
     """
@@ -756,9 +736,6 @@ class IdTokenEnumType(StrEnum):
     no_authorization = "NoAuthorization"
 
 
-IdTokenType = DeprecatedEnumWrapper(IdTokenEnumType, "IdTokenType")
-
-
 class InstallCertificateStatusEnumType(StrEnum):
     """
     InstallCertificateStatusEnumType is used by
@@ -1330,7 +1307,7 @@ class UploadLogStatusEnumType(StrEnum):
     accepted_canceled = "AcceptedCanceled"
 
 
-class VPNType(StrEnum):
+class VPNEnumType(StrEnum):
     """
     Enumeration of VPN Types used in SetNetworkProfileRequest.VPNType
     """
@@ -1344,7 +1321,7 @@ class VPNType(StrEnum):
 # DataTypes
 
 
-class StandardizedUnitsOfMeasureEnumType(StrEnum):
+class StandardizedUnitsOfMeasureType(StrEnum):
     """
     Allowable values of the optional "unit" field of a Value element, as used
     in MeterValues.req and StopTransaction.req messages. Default value of
@@ -1387,12 +1364,7 @@ class StandardizedUnitsOfMeasureEnumType(StrEnum):
     k = "K"
 
 
-UnitOfMeasureType = DeprecatedEnumWrapper(
-    StandardizedUnitsOfMeasureEnumType, "UnitOfMeasureType"
-)
-
-
-class StatusInfoReasonEnumType(StrEnum):
+class StatusInfoReasonType(StrEnum):
     """
     Standardized reason codes for StatusInfo defined in Appendix 5. v1.3
     """
@@ -1442,7 +1414,7 @@ class StatusInfoReasonEnumType(StrEnum):
     write_only = "WriteOnly"
 
 
-class SecurityEventEnumType(StrEnum):
+class SecurityEventType(StrEnum):
     """
     Security Events as listed in Appendices (Appendix 1. Security Events) v1.3
     """
@@ -1620,7 +1592,7 @@ class StandardizedVariableName(StrEnum):
     impedance = "Impedance"
     imsi = "IMSI"
     interval = "Interval"
-    iso_15118_evse_id = "ISO15118EvseId"
+    iso15118_evse_id = "ISO15118EvseId"
     length = "Length"
     light = "Light"
     manufacturer = "Manufacturer"
@@ -2212,8 +2184,8 @@ class ConnectedEVVariableName(StrEnum):
     charging_complete_full = "ChargingCompleteFull"
 
     # Status values
-    battery_over_voltage = " BatteryOvervoltage"
-    battery_under_voltage = " BatteryUndervoltage"
+    battery_overvoltage = " BatteryOvervoltage"
+    battery_undervoltage = " BatteryUndervoltage"
     charging_current_deviation = " ChargingCurrentDeviation"
     battery_temperature = "BatteryTemperature"
     voltage_deviation = "VoltageDeviation"
diff --git a/tests/v201/test_v201_data_types.py b/tests/v201/test_v201_data_types.py
index c801a3ab8..30cffc552 100644
--- a/tests/v201/test_v201_data_types.py
+++ b/tests/v201/test_v201_data_types.py
@@ -82,8 +82,8 @@
     ReasonEnumType,
     SetMonitoringStatusEnumType,
     SetVariableStatusEnumType,
-    StandardizedUnitsOfMeasureEnumType,
-    VPNType,
+    StandardizedUnitsOfMeasureType,
+    VPNEnumType,
 )
 
 T = TypeVar("T", bound="dataclass")
@@ -708,7 +708,7 @@ def test_network_connection_profile_type():
         message_timeout=30,
         security_profile=1,
         ocpp_interface=OCPPInterfaceEnumType.wired0,
-        vpn=VPNType.ikev2,
+        vpn=VPNEnumType.ikev2,
     )
 
     new_ncpt = to_datatype(NetworkConnectionProfileType, ncpt)
@@ -844,7 +844,7 @@ def test_sampled_value_type():
         phase=PhaseEnumType.l1,
         location=LocationEnumType.outlet,
         unit_of_measure=UnitOfMeasureType(
-            unit=StandardizedUnitsOfMeasureEnumType.v, multiplier=0
+            unit=StandardizedUnitsOfMeasureType.v, multiplier=0
         ),
     )