diff --git a/charger/fritzdect.go b/charger/fritzdect.go
index 3141b3eae..b0604c2d6 100644
--- a/charger/fritzdect.go
+++ b/charger/fritzdect.go
@@ -103,12 +103,6 @@ func (c *FritzDECT) Enable(enable bool) error {
 	return err
 }
 
-// MaxCurrent implements the api.Charger interface
-func (c *FritzDECT) MaxCurrent(current int64) error {
-	return nil
-}
-
-var _ api.Meter = (*FritzDECT)(nil)
 var _ api.MeterEnergy = (*FritzDECT)(nil)
 
 // TotalEnergy implements the api.MeterEnergy interface
diff --git a/charger/homematic.go b/charger/homematic.go
index 5730debd5..aa06a6448 100644
--- a/charger/homematic.go
+++ b/charger/homematic.go
@@ -59,12 +59,6 @@ func (c *CCU) Enable(enable bool) error {
 	return c.conn.Enable(enable)
 }
 
-// MaxCurrent implements the api.Charger interface
-func (c *CCU) MaxCurrent(current int64) error {
-	return nil
-}
-
-var _ api.Meter = (*CCU)(nil)
 var _ api.MeterEnergy = (*CCU)(nil)
 
 // TotalEnergy implements the api.MeterEnergy interface
diff --git a/charger/mystrom.go b/charger/mystrom.go
index 3115a9974..bf9fdac2e 100644
--- a/charger/mystrom.go
+++ b/charger/mystrom.go
@@ -62,10 +62,3 @@ func (c *MyStrom) Enable(enable bool) error {
 	onoff := map[bool]int{false: 0, true: 1}
 	return c.conn.Request(fmt.Sprintf("relay?state=%d", onoff[enable]))
 }
-
-// MaxCurrent implements the api.Charger interface
-func (c *MyStrom) MaxCurrent(current int64) error {
-	return nil
-}
-
-var _ api.Meter = (*MyStrom)(nil)
diff --git a/charger/shelly.go b/charger/shelly.go
index 440d37cbf..67f0cba1f 100644
--- a/charger/shelly.go
+++ b/charger/shelly.go
@@ -76,12 +76,6 @@ func (c *Shelly) Enable(enable bool) error {
 	}
 }
 
-// MaxCurrent implements the api.Charger interface
-func (c *Shelly) MaxCurrent(current int64) error {
-	return nil
-}
-
-var _ api.Meter = (*Shelly)(nil)
 var _ api.MeterEnergy = (*Shelly)(nil)
 
 // TotalEnergy implements the api.MeterEnergy interface
diff --git a/charger/switchsocket.go b/charger/switchsocket.go
index 5a6f1694a..7e4f5fe69 100644
--- a/charger/switchsocket.go
+++ b/charger/switchsocket.go
@@ -48,6 +48,18 @@ func (c *switchSocket) Status() (api.ChargeStatus, error) {
 	return res, err
 }
 
+// MaxCurrent implements the api.Charger interface
+func (c *switchSocket) MaxCurrent(current int64) error {
+	return nil
+}
+
+var _ api.ChargerEx = (*switchSocket)(nil)
+
+// MaxCurrentMillis implements the api.ChargerEx interface
+func (c *switchSocket) MaxCurrentMillis(current float64) error {
+	return nil
+}
+
 var _ api.Meter = (*switchSocket)(nil)
 
 // CurrentPower calculates a generic switches power
diff --git a/charger/tapo.go b/charger/tapo.go
index 3fdc2ec81..dcc9a539e 100644
--- a/charger/tapo.go
+++ b/charger/tapo.go
@@ -68,12 +68,6 @@ func (c *Tapo) Enable(enable bool) error {
 	return err
 }
 
-// MaxCurrent implements the api.Charger interface
-func (c *Tapo) MaxCurrent(current int64) error {
-	return nil
-}
-
-var _ api.Meter = (*Tapo)(nil)
 var _ api.ChargeRater = (*Tapo)(nil)
 
 // ChargedEnergy implements the api.ChargeRater interface
diff --git a/charger/tasmota.go b/charger/tasmota.go
index 387ac83c2..6961bdf21 100644
--- a/charger/tasmota.go
+++ b/charger/tasmota.go
@@ -168,12 +168,6 @@ func (c *Tasmota) Enable(enable bool) error {
 	}
 }
 
-// MaxCurrent implements the api.Charger interface
-func (c *Tasmota) MaxCurrent(current int64) error {
-	return nil
-}
-
-var _ api.Meter = (*Tasmota)(nil)
 var _ api.MeterEnergy = (*Tasmota)(nil)
 
 // TotalEnergy implements the api.MeterEnergy interface
diff --git a/charger/tplink.go b/charger/tplink.go
index 47a79b65d..6a4551788 100644
--- a/charger/tplink.go
+++ b/charger/tplink.go
@@ -92,12 +92,6 @@ func (c *TPLink) Enable(enable bool) error {
 	return nil
 }
 
-// MaxCurrent implements the api.Charger interface
-func (c *TPLink) MaxCurrent(current int64) error {
-	return nil
-}
-
-var _ api.Meter = (*TPLink)(nil)
 var _ api.MeterEnergy = (*TPLink)(nil)
 
 // TotalEnergy implements the api.MeterEnergy interface