diff --git a/core/loadpoint.go b/core/loadpoint.go
index 2261e9992..dead0a6fc 100644
--- a/core/loadpoint.go
+++ b/core/loadpoint.go
@@ -1196,8 +1196,9 @@ func (lp *Loadpoint) UpdateChargePower() {
 		lp.log.DEBUG.Printf("charge power: %.0fW", value)
 		lp.publish("chargePower", value)
 
-		// use -1 for https://github.com/evcc-io/evcc/issues/2153
-		if lp.chargePower < -1 {
+		// https://github.com/evcc-io/evcc/issues/2153
+		// https://github.com/evcc-io/evcc/issues/6986
+		if lp.chargePower < -20 {
 			lp.log.WARN.Printf("charge power must not be negative: %.0f", lp.chargePower)
 		}