diff --git a/cmd/charger.go b/cmd/charger.go
index 06f3cba49..ae6c2f9cb 100644
--- a/cmd/charger.go
+++ b/cmd/charger.go
@@ -19,7 +19,7 @@ var chargerCmd = &cobra.Command{
 
 func init() {
 	rootCmd.AddCommand(chargerCmd)
-	chargerCmd.Flags().IntP(flagCurrent, "i", 0, flagCurrentDescription)
+	chargerCmd.Flags().Float64P(flagCurrent, "i", 0, flagCurrentDescription)
 	//lint:ignore SA1019 as Title is safe on ascii
 	chargerCmd.Flags().BoolP(flagEnable, "e", false, strings.Title(flagEnable))
 	//lint:ignore SA1019 as Title is safe on ascii
@@ -60,13 +60,19 @@ func runCharger(cmd *cobra.Command, args []string) {
 		if flag := cmd.Flags().Lookup(flagCurrent); flag.Changed {
 			flagUsed = true
 
-			current, err := strconv.ParseInt(flag.Value.String(), 10, 64)
+			current, err := strconv.ParseFloat(flag.Value.String(), 64)
 			if err != nil {
 				log.ERROR.Fatalln(err)
 			}
 
-			if err := v.MaxCurrent(current); err != nil {
-				log.ERROR.Println("set current:", err)
+			if vv, ok := v.(api.ChargerEx); ok {
+				if err := vv.MaxCurrentMillis(current); err != nil {
+					log.ERROR.Println("set current:", err)
+				}
+			} else {
+				if err := v.MaxCurrent(int64(current)); err != nil {
+					log.ERROR.Println("set current:", err)
+				}
 			}
 		}