diff --git a/charger/go-e_test.go b/charger/go-e_test.go
deleted file mode 100644
index cfa3c2c74..000000000
--- a/charger/go-e_test.go
+++ /dev/null
@@ -1,24 +0,0 @@
-package charger
-
-import (
-	"testing"
-
-	"github.com/evcc-io/evcc/api"
-)
-
-// TestGoE tests interfaces
-func TestGoE(t *testing.T) {
-	var wb api.Charger
-	wb, err := NewGoE("foo", "bar", 0)
-	if err != nil {
-		t.Error(err)
-	}
-
-	if _, ok := wb.(api.MeterCurrent); !ok {
-		t.Error("missing MeterCurrent interface")
-	}
-
-	if _, ok := wb.(api.ChargeRater); !ok {
-		t.Error("missing ChargeRater interface")
-	}
-}
diff --git a/charger/nrgble_linux_test.go b/charger/nrgble_linux_test.go
deleted file mode 100644
index 2108d37ff..000000000
--- a/charger/nrgble_linux_test.go
+++ /dev/null
@@ -1,15 +0,0 @@
-package charger
-
-import (
-	"testing"
-
-	"github.com/evcc-io/evcc/api"
-)
-
-func TestNRGKickBLE(t *testing.T) {
-	var wb api.Charger = &NRGKickBLE{}
-
-	if _, ok := wb.(api.MeterCurrent); !ok {
-		t.Error("missing MeterCurrent interface")
-	}
-}
diff --git a/charger/nrgconnect_test.go b/charger/nrgconnect_test.go
deleted file mode 100644
index e25238ce6..000000000
--- a/charger/nrgconnect_test.go
+++ /dev/null
@@ -1,23 +0,0 @@
-package charger
-
-import (
-	"testing"
-
-	"github.com/evcc-io/evcc/api"
-)
-
-func TestNRGKickConnect(t *testing.T) {
-	var wb api.Charger
-	wb, err := NewNRGKickConnect("foo", "bar", "baz")
-	if err != nil {
-		t.Error(err)
-	}
-
-	if _, ok := wb.(api.MeterEnergy); !ok {
-		t.Error("missing MeterEnergy interface")
-	}
-
-	if _, ok := wb.(api.MeterCurrent); !ok {
-		t.Error("missing MeterCurrent interface")
-	}
-}
diff --git a/charger/openwb_test.go b/charger/openwb_test.go
deleted file mode 100644
index 8c32589a7..000000000
--- a/charger/openwb_test.go
+++ /dev/null
@@ -1,30 +0,0 @@
-package charger
-
-import (
-	"testing"
-
-	"github.com/evcc-io/evcc/api"
-)
-
-func TestOpenWBDecorators(t *testing.T) {
-	// host not reachable
-	wb, err := NewOpenWBFromConfig(map[string]interface{}{
-		"broker": "192.0.2.2",
-	})
-
-	if err != nil {
-		t.Skip(err)
-	}
-
-	if _, ok := wb.(api.Meter); !ok {
-		t.Error("missing Meter api")
-	}
-
-	if _, ok := wb.(api.MeterEnergy); !ok {
-		t.Error("missing MeterEnergy api")
-	}
-
-	if _, ok := wb.(api.MeterCurrent); !ok {
-		t.Error("missing MeterCurrent api")
-	}
-}