diff --git a/goodwe/es.py b/goodwe/es.py
index b71d0fd..159c176 100644
--- a/goodwe/es.py
+++ b/goodwe/es.py
@@ -174,11 +174,11 @@ def __init__(self, host: str, port: int, comm_addr: int = 0, timeout: int = 1, r
     def _supports_eco_mode_v2(self) -> bool:
         if self.arm_version < 14:
             return False
-        if "EMU" in self.serial_number:
+        if "EMU" in self.serial_number or "EMJ" in self.serial_number:
             return self.dsp1_version >= 11
-        if "ESU" in self.serial_number:
+        if "ESU" in self.serial_number or "ESA" in self.serial_number:
             return self.dsp1_version >= 22
-        if "BPS" in self.serial_number:
+        if "BPS" in self.serial_number or "BPU" in self.serial_number:
             return self.dsp1_version >= 10
         return False
 
@@ -188,7 +188,7 @@ async def read_device_info(self):
         self.firmware = self._decode(response[0:5]).rstrip()
         self.model_name = self._decode(response[5:15]).rstrip()
         self.serial_number = self._decode(response[31:47])
-        self.software_version = self._decode(response[51:63])
+        self.arm_firmware = self._decode(response[51:63])  # AKA software_version
         try:
             if len(self.firmware) >= 2:
                 self.dsp1_version = int(self.firmware[0:2])