diff --git a/pkg/fronius/fronius_test.go b/pkg/fronius/fronius_test.go
index 088ce06..503d80c 100644
--- a/pkg/fronius/fronius_test.go
+++ b/pkg/fronius/fronius_test.go
@@ -248,7 +248,7 @@ func TestBatteryChargeMode5(t *testing.T) {
 	setup()
 
 	result, err := fronius.SetFroniusChargeBatteryMode(1000, 11000, 11000, 9000, 3500, 2500, "00:00", "23:59", modbus_ip, modbus_port)
-	assert.Equal(int16(31), result, "SetFroniusChargeBatteryMode returned wrong value")
+	assert.Equal(int16(22), result, "SetFroniusChargeBatteryMode returned wrong value")
 	assert.NoError(err)
 
 	teardown()
@@ -292,7 +292,7 @@ func TestBatteryChargeError(t *testing.T) {
 	setup()
 
 	result, err := fronius.SetFroniusChargeBatteryMode(1000, 11000, -11000, 9000, 3500, 0, "00:00", "23:59", modbus_ip, modbus_port)
-	assert.Equal(int16(-72), result, "SetFroniusChargeBatteryMode returned wrong value")
+	assert.Equal(int16(-200), result, "SetFroniusChargeBatteryMode returned wrong value")
 	assert.Error(err)
 
 	teardown()
diff --git a/pkg/fronius/schedule.go b/pkg/fronius/schedule.go
index 4e11fda..4ef471f 100644
--- a/pkg/fronius/schedule.go
+++ b/pkg/fronius/schedule.go
@@ -12,17 +12,17 @@ func SetFroniusChargeBatteryMode(pw_forecast float64, pw_batt2charge float64, pw
 	var ch_pc int16 = 0
 	pw_pv_net := pw_forecast - pw_consumption // Net solar power
 	pw_batt := pw_batt_max - pw_batt2charge   // actual battery power
-	pw_net := pw_batt_reserve + pw_pv_net     // net power available (reserve + Net solar power)
+	pw_net := pw_batt + pw_pv_net             // net power available (actual battery power + Net solar power)
 
 	switch {
 	case pw_batt2charge == 0: // battery 100% => do not charge
 		u.Log.Info("Battery is full charged")
-	case pw_net < 0 && pw_batt < pw_batt_reserve: // net power is not enough and battery level is under the reserve => charge
-		u.Log.Infof("Battery is under the reserve and Net Power (battery reserve + Net solar power) is not enough: %f Wh", pw_net)
-		ch_pc = SetChargePower(pw_batt_max, -1*pw_net, max_charge)
 	case pw_batt < pw_batt_reserve: // battery is less than reserve => charge
 		u.Log.Infof("battery %f Wh < reserve %f Wh", pw_batt, pw_batt_reserve)
 		ch_pc = SetChargePower(pw_batt_max, pw_batt_reserve-pw_batt, max_charge)
+	case pw_net < 0: // net power is not enough => charge
+		u.Log.Infof("Net Power (actual battery power + Net solar power) is not enough: %f Wh", pw_net)
+		ch_pc = SetChargePower(pw_batt_max, -1*pw_net, max_charge)
 	default: // check if Actual battery is enough, charge oterwise
 		pw_grid, charge_enabled := ChargeBattery(pw_pv_net, pw_batt)
 		if charge_enabled {