diff --git a/lib/ClassicUi/html/meter.html b/lib/ClassicUi/html/meter.html
index 719cb4a4..5659c543 100644
--- a/lib/ClassicUi/html/meter.html
+++ b/lib/ClassicUi/html/meter.html
@@ -35,6 +35,7 @@
                         <span class="input-group-text">Baud rate</span>
                     </div>
                     <select class="form-control sd" name="b">
+                        <option value="300" {b300}>300</option>
                         <option value="2400" {b2400}>2400</option>
                         <option value="4800" {b4800}>4800</option>
                         <option value="9600" {b9600}>9600</option>
diff --git a/lib/ClassicUi/src/AmsWebServer.cpp b/lib/ClassicUi/src/AmsWebServer.cpp
index 6093312f..6e0de991 100644
--- a/lib/ClassicUi/src/AmsWebServer.cpp
+++ b/lib/ClassicUi/src/AmsWebServer.cpp
@@ -347,6 +347,7 @@ void AmsWebServer::configMeterHtml() {
 	html.replace(F("{mod}"), meterState->getMeterModel());
 	html.replace(F("{mid}"), meterState->getMeterId());
 	html.replace(F("{b}"), String(meterConfig->baud));
+	html.replace(F("{b300}"), meterConfig->baud == 300 ? F("selected") : F(""));
 	html.replace(F("{b2400}"), meterConfig->baud == 2400 ? F("selected") : F(""));
 	html.replace(F("{b4800}"), meterConfig->baud == 4800 ? F("selected") : F(""));
 	html.replace(F("{b9600}"), meterConfig->baud == 9600 ? F("selected") : F(""));
diff --git a/lib/EnergyAccounting/src/EnergyAccounting.cpp b/lib/EnergyAccounting/src/EnergyAccounting.cpp
index 6e718213..501fa490 100644
--- a/lib/EnergyAccounting/src/EnergyAccounting.cpp
+++ b/lib/EnergyAccounting/src/EnergyAccounting.cpp
@@ -168,7 +168,6 @@ void EnergyAccounting::calcDayCost() {
             float price = eapi->getValueForHour(i - local.Hour);
             if(price == ENTSOE_NO_VALUE) break;
             breakTime(now - ((local.Hour - i) * 3600), utc);
-
             int16_t wh = ds->getHourImport(utc.Hour);
             costDay += price * (wh / 1000.0);
 
diff --git a/src/IEC6205675.cpp b/src/IEC6205675.cpp
index b3f32c22..ccad1be7 100644
--- a/src/IEC6205675.cpp
+++ b/src/IEC6205675.cpp
@@ -98,8 +98,10 @@ IEC6205675::IEC6205675(const char* d, uint8_t useMeterType, MeterConfig* meterCo
                 }
 
                 if(listType >= 2 && memcmp(meterModel.c_str(), "MA304T3", 7) == 0) {
-                    l2current = (((activeImportPower - activeExportPower) * sqrt(3)) - (l1voltage * l1current) - (l3voltage * l3current)) / l2voltage;
                     l2voltage = sqrt(pow(l1voltage - l3voltage * cos(60 * (PI/180)), 2) + pow(l3voltage * sin(60 * (PI/180)),2));
+                    if(l2voltage > 0) {
+                        l2current = (((activeImportPower - activeExportPower) * sqrt(3)) - (l1voltage * l1current) - (l3voltage * l3current)) / l2voltage;
+                    }
                 }
 
                 if(listType == 3) {