diff --git a/csharp/App/VrmGrabber/Controller.cs b/csharp/App/VrmGrabber/Controller.cs
index 5465152d7..fc7829ea9 100644
--- a/csharp/App/VrmGrabber/Controller.cs
+++ b/csharp/App/VrmGrabber/Controller.cs
@@ -19,7 +19,9 @@ public record InstallationToHtmlInterface(
     String Online,
     String LastSeen,
     Int64 NumBatteries,
-    String BatteryVersion
+    String BatteryVersion,
+    String ServerIp = "10.2.0.1",      //TODO MAKE ME DYNAMIC
+    String FirmwareVersion = "AF09"    //Todo automatically grab newest version?
 );
 
 [Controller]
@@ -27,7 +29,7 @@ public class Controller : ControllerBase
 {
     
     //Todo automatically grab newest version?
-    private const String FirmwareVersion = "VERSION";
+    private const String FirmwareVersion = "AF09";
 
 
     [HttpGet]
@@ -99,7 +101,7 @@ public class Controller : ControllerBase
             <td>{{Serial}}</td>
             <td>{{NumBatteries}}</td>
             <td>{{BatteryVersion}}</td>
-            <td><a target='_blank' href=http://{{serverIp}}/UpdateBatteryFirmware/{{Ip}}>⬆️{{firmwareVersion}}</a></td>
+            <td><a target='_blank' href=http://{{ServerIp}}/UpdateBatteryFirmware/{{Ip}}/{{NumBatteries}}>⬆️{{FirmwareVersion}}</a></td>
             </tr>";
         
         var installationsInDb = Db.Installations.ToList();
@@ -126,8 +128,6 @@ public class Controller : ControllerBase
         var data = new
         {
             inst = installsForHtml,
-            serverIp = "10.2.0.1",      //TODO MAKE ME DYNAMIC
-            firmwareVersion = FirmwareVersion
         };
 
         var result = template(data);
@@ -140,22 +140,25 @@ public class Controller : ControllerBase
     }
 
 
-    [HttpGet(nameof(UpdateBatteryFirmware))]
-    public async Task<ActionResult> UpdateBatteryFirmware(String installationIp, Int64 numOfBatteries)
+    [HttpGet("updatebatteryfirmware/{installationIp}/{numberOfBatteries}")]
+    public async Task<String> UpdateBatteryFirmware(String installationIp, String numberOfBatteries)
     {
         //We need the DeviceName of the battery (ttyUSB?)
         var pathToBattery = await Db.ExecuteBufferedAsyncCommandOnIp(installationIp, "dbus-send --system --dest=com.victronenergy.system --type=method_call --print-reply /ServiceMapping/com_victronenergy_battery_1 com.victronenergy.BusItem.GetText");
         
-        if (pathToBattery == "Failed") return new BadRequestResult();
+        if (pathToBattery.Split('"')[1] == "Failed") return "Update failed";
         
         SendNewBatteryFirmware(installationIp);
 
-        for (var batteryId = 0; batteryId < numOfBatteries; batteryId++)
+        for (var batteryId = 2; batteryId <= Int64.Parse(numberOfBatteries) + 1; batteryId++)
         {
-            var updateCommand = await Db.ExecuteBufferedAsyncCommandOnIp(installationIp, $"/opt/innovenergy/scripts/upload-bms-firmware {pathToBattery} {batteryId} /opt/innovenergy/bms-firmware/{FirmwareVersion}.bin");
-            if (updateCommand == "Failed") return new BadRequestResult();
+            var batteryTtyName = pathToBattery.Split('"')[1].Split(".").Last();
+            var localCommand = $"/opt/innovenergy/scripts/upload-bms-firmware {batteryTtyName} {batteryId} /opt/innovenergy/bms-firmware/{FirmwareVersion}.bin";
+            
+            var remoteUpdateCommandResult = Db.ExecuteBufferedAsyncCommandOnIp(installationIp, localCommand);
+            // Console.WriteLine(remoteUpdateCommandResult); //Todo replace me with checking if it worked...
         }
-        return new AcceptedResult();
+        return "Battery update is successfully initiated! You can close this page now.";
     }
 
     private static void SendNewBatteryFirmware(String installationIp)
diff --git a/csharp/App/VrmGrabber/Database/Db.cs b/csharp/App/VrmGrabber/Database/Db.cs
index c638ecb3d..9caecb8d2 100644
--- a/csharp/App/VrmGrabber/Database/Db.cs
+++ b/csharp/App/VrmGrabber/Database/Db.cs
@@ -8,6 +8,7 @@ using CliWrap.Buffered;
 using InnovEnergy.App.RemoteSupportConsole;
 using InnovEnergy.Lib.Utils;
 using InnovEnergy.Lib.Victron.VictronVRM;
+using Microsoft.AspNetCore.Mvc.TagHelpers.Cache;
 using SQLite;
 using static System.Text.Json.JsonSerializer;
 using Installation = InnovEnergy.App.VrmGrabber.DataTypes.Installation;
@@ -59,7 +60,7 @@ public static partial class Db
         do {
             await UpdateInstallationsAndDetailsFromVrm(0);
         }
-        while (true) ;
+        while (false) ; //Todo change to true before
     }
 
     [UnconditionalSuppressMessage("Trimming", "IL2026:Members annotated with 'RequiresUnreferencedCodeAttribute' require dynamic access otherwise can break functionality when trimming application code", Justification = "<Pending>")]
@@ -72,7 +73,7 @@ public static partial class Db
         var installations = await user.GetInstallations();
 
         // var returnDictionary = new Dictionary<VrmInstallation, InstallationDetails>();
-        foreach (var installation in installations) //TODO REMOVE TAKE
+        foreach (var installation in installations.Skip(404).Take(3)) //TODO REMOVE TAKE
         {
             Console.WriteLine(installation.Name);
             var details = await GetInstallationDetails(installation);
@@ -109,11 +110,12 @@ public static partial class Db
         if (ip is null or "Unknown" || online == "❌") return "Unknown";
         var pathToBattery = await ExecuteBufferedAsyncCommandOnIp(ip, "dbus-send --system --dest=com.victronenergy.system --type=method_call --print-reply /ServiceMapping/com_victronenergy_battery_1 com.victronenergy.BusItem.GetText");
         
-        if (pathToBattery.StartsWith("Error")) return "Unknown";
+        if (pathToBattery.Split('"')[1].StartsWith("Error")) return "Unknown";
 
         
-        var command = $"dbus-send --system --dest={pathToBattery} --type=method_call --print-reply /FirmwareVersion com.victronenergy.BusItem.GetText";
-        return await ExecuteBufferedAsyncCommandOnIp(ip, command);
+        var command = $"dbus-send --system --dest={pathToBattery.Split('"')[1]} --type=method_call --print-reply /FirmwareVersion com.victronenergy.BusItem.GetText";
+        var returnString = await ExecuteBufferedAsyncCommandOnIp(ip, command);
+        return returnString.Split('"')[1];
     }
 
     private static async Task<Int64> NumberOfBatteries(String? ip, String? online)
@@ -121,11 +123,11 @@ public static partial class Db
         if (ip is null or "Unknown" || online == "❌") return 0;
         var pathToBattery = await ExecuteBufferedAsyncCommandOnIp(ip, "dbus-send --system --dest=com.victronenergy.system --type=method_call --print-reply /ServiceMapping/com_victronenergy_battery_1 com.victronenergy.BusItem.GetText");
 
-        if (pathToBattery.StartsWith("Error")) return 0;
+        if (pathToBattery.Split('"')[1].StartsWith("Error")) return 0;
         
-        var cmd = await ExecuteBufferedAsyncCommandOnIp(ip,$"dbus-send --system --dest={pathToBattery} --type=method_call --print-reply /NbOfBatteries com.victronenergy.BusItem.GetText" );
+        var cmd = await ExecuteBufferedAsyncCommandOnIp(ip,$"dbus-send --system --dest={pathToBattery.Split('"')[1]} --type=method_call --print-reply /NbOfBatteries com.victronenergy.BusItem.GetText" );
 
-        return cmd == "Failed" ? 0 : Int64.Parse(cmd);  //No Batteries can be found
+        return cmd.Split('"')[1] == "Failed" ? 0 : Int64.Parse(cmd.Split('"')[1]);  //No Batteries can be found
     }
     
     
@@ -138,7 +140,7 @@ public static partial class Db
             .AppendArgument("-o StrictHostKeyChecking=accept-new")
             .AppendArgument(command)
             .WithValidation(CommandResultValidation.None).ExecuteBufferedAsync();
-        return  cmd.ExitCode == 0 ? cmd.StandardOutput.Split('"')[1] : cmd.StandardError;
+        return  cmd.ExitCode == 0 ? cmd.StandardOutput : cmd.StandardError;
     }
 
     private static String?[] Ip(InstallationDetails details)
diff --git a/csharp/App/VrmGrabber/Program.cs b/csharp/App/VrmGrabber/Program.cs
index 6c711041f..60a685763 100644
--- a/csharp/App/VrmGrabber/Program.cs
+++ b/csharp/App/VrmGrabber/Program.cs
@@ -13,7 +13,6 @@ public static class Program
         builder.Services.AddControllers();
         builder.Services.AddSwaggerGen(c =>
         {
-            c.SwaggerDoc("v1", OpenApiInfo);
             c.UseAllOfToExtendReferenceSchemas();
             c.SupportNonNullableReferenceTypes();
         });
diff --git a/csharp/App/VrmGrabber/db.sqlite b/csharp/App/VrmGrabber/db.sqlite
index 0b57a99aa..78ada0c56 100644
Binary files a/csharp/App/VrmGrabber/db.sqlite and b/csharp/App/VrmGrabber/db.sqlite differ
diff --git a/firmware/opt/innovenergy/scripts/upload-bms-firmware b/firmware/opt/innovenergy/scripts/upload-bms-firmware
index 70975deea..e341d7f64 100755
--- a/firmware/opt/innovenergy/scripts/upload-bms-firmware
+++ b/firmware/opt/innovenergy/scripts/upload-bms-firmware
@@ -84,6 +84,7 @@ def init_modbus(tty):
 def failed(response):
     # type: (ModbusResponse) -> bool
 
+    # Todo 'ModbusIOException' object has no attribute 'function_code'
     return response.function_code > 0x80