Fix for InvBatPower2 register endian change (#694)

* Fix for InvBatPower2 register endian change

the latest H3 Pro firmware Master 1.53, Manager 1.22 has flipped the endian for this register; which now matches the Fox modbus definition (V1.05.00.00)
see #685 (reply in thread)

custom_components/foxess_modbus/entities/entity_descriptions.py

@@ -1197,7 +1197,11 @@ def _invbatpower(index: int | None, addresses: list[ModbusAddressesSpec]) -> Ite
         addresses=[
             # It does genuinely look like these two are the wrong way around, see
             # https://github.com/nathanmarlor/foxess_modbus/discussions/516#discussioncomment-9569558
-            ModbusAddressesSpec(holding=[39235, 39236], models=Inv.H3_PRO),
+            # ^^^^ Following on from this previous comment,
+            # the H3 Pro firmware from Master 1.53, Manager 1.22 has corrected the endian for this
+            # batpower2 register; it now matches the Fox modbus definition V1.05.00.00
+            # see https://github.com/nathanmarlor/foxess_modbus/discussions/685#discussioncomment-10811413
+            ModbusAddressesSpec(holding=[39236, 39235], models=Inv.H3_PRO),
         ],
     )
 

tests/__snapshots__/test_entity_descriptions/test_entity_descriptions_for_model[Inv.H3_PRO].json

@@ -52,8 +52,8 @@
   {
     "addresses": {
       "holding": [
-        39235,
-        39236
+        39236,
+        39235
       ]
     },
     "key": "battery_charge_2",
@@ -117,8 +117,8 @@
   {
     "addresses": {
       "holding": [
-        39235,
-        39236
+        39236,
+        39235
       ]
     },
     "key": "battery_discharge_2",
@@ -979,8 +979,8 @@
   {
     "addresses": {
       "holding": [
-        39235,
-        39236
+        39236,
+        39235
       ]
     },
     "key": "invbatpower_2",