diff --git a/charger/phoenix-ev-eth.go b/charger/phoenix-ev-eth.go
index a0a124691..c6ee0020e 100644
--- a/charger/phoenix-ev-eth.go
+++ b/charger/phoenix-ev-eth.go
@@ -13,7 +13,7 @@ import (
 const (
 	phxEVEthRegStatus     = 100 // Input
 	phxEVEthRegChargeTime = 102 // Input
-	phxEVEthRegMaxCurrent = 300 // Holding
+	phxEVEthRegMaxCurrent = 528 // Holding
 	phxEVEthRegEnable     = 400 // Coil
 
 	phxEVEthRegPower  = 120 // power reading