diff --git a/custom_components/bluetti_bt/bluetti_bt_lib/base_devices/ProtocolV1Device.py b/custom_components/bluetti_bt/bluetti_bt_lib/base_devices/ProtocolV1Device.py
index 6dd4dd0..ff66723 100644
--- a/custom_components/bluetti_bt/bluetti_bt_lib/base_devices/ProtocolV1Device.py
+++ b/custom_components/bluetti_bt/bluetti_bt_lib/base_devices/ProtocolV1Device.py
@@ -56,10 +56,8 @@ class ProtocolV1Device(BluettiDevice):
             ReadHoldingRegisters(36, 4),
             ReadHoldingRegisters(41, 1),
             ReadHoldingRegisters(43, 1),
-            ReadHoldingRegisters(91, 2),
-            ReadHoldingRegisters(96, 1),
-            ReadHoldingRegisters(98, 2),
             ReadHoldingRegisters(48, 2),
+            ReadHoldingRegisters(3007, 2),
         ]
 
     @property
diff --git a/custom_components/bluetti_bt/bluetti_bt_lib/devices/ac200m.py b/custom_components/bluetti_bt/bluetti_bt_lib/devices/ac200m.py
index f5fa41a..5c4f4ae 100644
--- a/custom_components/bluetti_bt/bluetti_bt_lib/devices/ac200m.py
+++ b/custom_components/bluetti_bt/bluetti_bt_lib/devices/ac200m.py
@@ -13,10 +13,10 @@ class AC200M(ProtocolV1Device):
 
         # Details
         self.struct.add_enum_field("ac_output_mode", 70, OutputMode)
-        self.struct.add_uint_field("internal_ac_voltage", 71)
+        self.struct.add_decimal_field("internal_ac_voltage", 71, 1)
         self.struct.add_decimal_field("internal_current_one", 72, 1)
         self.struct.add_uint_field("internal_power_one", 73)
-        self.struct.add_decimal_field("internal_ac_frequency", 74, 1)
+        self.struct.add_decimal_field("internal_ac_frequency", 74, 2)
         self.struct.add_uint_field("internal_dc_input_voltage", 86)
         self.struct.add_decimal_field("internal_dc_input_power", 87, 1)
         self.struct.add_decimal_field("internal_dc_input_current", 88, 2)
@@ -35,13 +35,14 @@ class AC200M(ProtocolV1Device):
     @property
     def polling_commands(self) -> List[ReadHoldingRegisters]:
         return super().polling_commands + [
-            ReadHoldingRegisters(70, 4),
+            ReadHoldingRegisters(70, 5),
             ReadHoldingRegisters(86, 3),
+            ReadHoldingRegisters(3060, 2),
         ]
 
     @property
     def writable_ranges(self) -> List[range]:
-        return super().writable_ranges + [range(3060, 3061)]
+        return super().writable_ranges + [range(3060, 3062)]
 
     @property
     def pack_polling_commands(self) -> List[ReadHoldingRegisters]:
diff --git a/custom_components/bluetti_bt/bluetti_bt_lib/devices/ac300.py b/custom_components/bluetti_bt/bluetti_bt_lib/devices/ac300.py
index 3ceae5c..5a73e4a 100644
--- a/custom_components/bluetti_bt/bluetti_bt_lib/devices/ac300.py
+++ b/custom_components/bluetti_bt/bluetti_bt_lib/devices/ac300.py
@@ -13,10 +13,10 @@ class AC300(ProtocolV1Device):
 
         # Details (matches EP500 + AC500)
         self.struct.add_enum_field("ac_output_mode", 70, OutputMode)
-        self.struct.add_uint_field("internal_ac_voltage", 71)
+        self.struct.add_decimal_field("internal_ac_voltage", 71, 1)
         self.struct.add_decimal_field("internal_current_one", 72, 1)
         self.struct.add_uint_field("internal_power_one", 73)
-        self.struct.add_decimal_field("internal_ac_frequency", 74, 1)
+        self.struct.add_decimal_field("internal_ac_frequency", 74, 2)
         self.struct.add_decimal_field("internal_current_two", 75, 1)
         self.struct.add_uint_field("internal_power_two", 76)
         self.struct.add_decimal_field("ac_input_voltage", 77, 1)
@@ -50,14 +50,20 @@ class AC300(ProtocolV1Device):
     @property
     def polling_commands(self) -> List[ReadHoldingRegisters]:
         return super().polling_commands + [
-            ReadHoldingRegisters(70, 10),
+            ReadHoldingRegisters(70, 11),
             ReadHoldingRegisters(86, 3),
+            ReadHoldingRegisters(3001, 1),
+            ReadHoldingRegisters(3004, 2),
+            ReadHoldingRegisters(3011, 1),
+            ReadHoldingRegisters(3013, 1),
+            ReadHoldingRegisters(3015, 2),
+            ReadHoldingRegisters(3061, 1),
         ]
 
     @property
     def writable_ranges(self) -> List[range]:
         return super().writable_ranges + [
-            range(3001, 3016),
+            range(3001, 3017),
             range(3061),
         ]
 
diff --git a/custom_components/bluetti_bt/bluetti_bt_lib/devices/ac500.py b/custom_components/bluetti_bt/bluetti_bt_lib/devices/ac500.py
index ca0dcc9..099ee6f 100644
--- a/custom_components/bluetti_bt/bluetti_bt_lib/devices/ac500.py
+++ b/custom_components/bluetti_bt/bluetti_bt_lib/devices/ac500.py
@@ -13,10 +13,10 @@ class AC500(ProtocolV1Device):
 
         # Details (matches EP500 + AC300)
         self.struct.add_enum_field("ac_output_mode", 70, OutputMode)
-        self.struct.add_uint_field("internal_ac_voltage", 71)
+        self.struct.add_decimal_field("internal_ac_voltage", 71, 1)
         self.struct.add_decimal_field("internal_current_one", 72, 1)
         self.struct.add_uint_field("internal_power_one", 73)
-        self.struct.add_decimal_field("internal_ac_frequency", 74, 1)
+        self.struct.add_decimal_field("internal_ac_frequency", 74, 2)
         self.struct.add_decimal_field("internal_current_two", 75, 1)
         self.struct.add_uint_field("internal_power_two", 76)
         self.struct.add_decimal_field("ac_input_voltage", 77, 1)
@@ -49,14 +49,20 @@ class AC500(ProtocolV1Device):
     @property
     def polling_commands(self) -> List[ReadHoldingRegisters]:
         return super().polling_commands + [
-            ReadHoldingRegisters(70, 10),
+            ReadHoldingRegisters(70, 11),
             ReadHoldingRegisters(86, 3),
+            ReadHoldingRegisters(3001, 1),
+            ReadHoldingRegisters(3004, 2),
+            ReadHoldingRegisters(3011, 1),
+            ReadHoldingRegisters(3013, 1),
+            ReadHoldingRegisters(3015, 2),
+            ReadHoldingRegisters(3061, 1),
         ]
 
     @property
     def writable_ranges(self) -> List[range]:
         return super().writable_ranges + [
-            range(3001, 3016),
+            range(3001, 3017),
             range(3061),
         ]
 
diff --git a/custom_components/bluetti_bt/bluetti_bt_lib/devices/ep500.py b/custom_components/bluetti_bt/bluetti_bt_lib/devices/ep500.py
index c95c60e..184cbc9 100644
--- a/custom_components/bluetti_bt/bluetti_bt_lib/devices/ep500.py
+++ b/custom_components/bluetti_bt/bluetti_bt_lib/devices/ep500.py
@@ -13,10 +13,10 @@ class EP500(ProtocolV1Device):
 
         # Details (matches AC500 + AC300)
         self.struct.add_enum_field("ac_output_mode", 70, OutputMode)
-        self.struct.add_uint_field("internal_ac_voltage", 71)
+        self.struct.add_decimal_field("internal_ac_voltage", 71, 1)
         self.struct.add_decimal_field("internal_current_one", 72, 1)
         self.struct.add_uint_field("internal_power_one", 73)
-        self.struct.add_decimal_field("internal_ac_frequency", 74, 1)
+        self.struct.add_decimal_field("internal_ac_frequency", 74, 2)
         self.struct.add_decimal_field("internal_current_two", 75, 1)
         self.struct.add_uint_field("internal_power_two", 76)
         self.struct.add_decimal_field("ac_input_voltage", 77, 1)
@@ -45,14 +45,20 @@ class EP500(ProtocolV1Device):
     @property
     def polling_commands(self) -> List[ReadHoldingRegisters]:
         return super().polling_commands + [
-            ReadHoldingRegisters(70, 10),
+            ReadHoldingRegisters(70, 11),
             ReadHoldingRegisters(86, 3),
+            ReadHoldingRegisters(3001, 1),
+            ReadHoldingRegisters(3004, 2),
+            ReadHoldingRegisters(3011, 1),
+            ReadHoldingRegisters(3013, 1),
+            ReadHoldingRegisters(3015, 2),
+            ReadHoldingRegisters(3061, 1),
         ]
 
     @property
     def writable_ranges(self) -> List[range]:
         return super().writable_ranges + [
-            range(3001, 3016),
+            range(3001, 3017),
             range(3061),
         ]
 
diff --git a/custom_components/bluetti_bt/bluetti_bt_lib/devices/ep500p.py b/custom_components/bluetti_bt/bluetti_bt_lib/devices/ep500p.py
index af462cb..53df796 100644
--- a/custom_components/bluetti_bt/bluetti_bt_lib/devices/ep500p.py
+++ b/custom_components/bluetti_bt/bluetti_bt_lib/devices/ep500p.py
@@ -13,10 +13,10 @@ class EP500P(ProtocolV1Device):
 
         # Details (matches AC500 + AC300)
         self.struct.add_enum_field("ac_output_mode", 70, OutputMode)
-        self.struct.add_uint_field("internal_ac_voltage", 71)
+        self.struct.add_decimal_field("internal_ac_voltage", 71, 1)
         self.struct.add_decimal_field("internal_current_one", 72, 1)
         self.struct.add_uint_field("internal_power_one", 73)
-        self.struct.add_decimal_field("internal_ac_frequency", 74, 1)
+        self.struct.add_decimal_field("internal_ac_frequency", 74, 2)
         self.struct.add_decimal_field("internal_current_two", 75, 1)
         self.struct.add_uint_field("internal_power_two", 76)
         self.struct.add_decimal_field("ac_input_voltage", 77, 1)
@@ -45,14 +45,20 @@ class EP500P(ProtocolV1Device):
     @property
     def polling_commands(self) -> List[ReadHoldingRegisters]:
         return super().polling_commands + [
-            ReadHoldingRegisters(70, 10),
+            ReadHoldingRegisters(70, 11),
             ReadHoldingRegisters(86, 3),
+            ReadHoldingRegisters(3001, 1),
+            ReadHoldingRegisters(3004, 2),
+            ReadHoldingRegisters(3011, 1),
+            ReadHoldingRegisters(3013, 1),
+            ReadHoldingRegisters(3015, 2),
+            ReadHoldingRegisters(3061, 1),
         ]
 
     @property
     def writable_ranges(self) -> List[range]:
         return super().writable_ranges + [
-            range(3001, 3016),
+            range(3001, 3017),
             range(3061),
         ]