diff --git a/libraries/AP_BattMonitor/AP_BattMonitor_Backend.cpp b/libraries/AP_BattMonitor/AP_BattMonitor_Backend.cpp
index c904864150ad6..51ea04184c4fc 100644
--- a/libraries/AP_BattMonitor/AP_BattMonitor_Backend.cpp
+++ b/libraries/AP_BattMonitor/AP_BattMonitor_Backend.cpp
@@ -34,6 +34,7 @@
     1-6:    AP_BattMonitor_Analog.cpp
     10-11:  AP_BattMonitor_SMBus.cpp
     20:     AP_BattMonitor_Sum.cpp
+    22-24:  AP_BattMonitor_INA3221.cpp
     25-26:  AP_BattMonitor_INA2xx.cpp
     27-28:  AP_BattMonitor_INA2xx.cpp, AP_BattMonitor_INA239.cpp (legacy duplication)
     30:     AP_BattMonitor_DroneCAN.cpp
@@ -41,7 +42,6 @@
     40-43:  AP_BattMonitor_FuelLevel_Analog.cpp
     45-48:  AP_BattMonitor_FuelLevel_Analog.cpp
     50-51:  AP_BattMonitor_Synthetic_Current.cpp
-    56-58:  AP_BattMonitor_INA3221.cpp
     56-61:  AP_BattMonitor_AD7091R5.cpp
 
   Usage does not need to be contiguous. The maximum possible index is 63.
diff --git a/libraries/AP_BattMonitor/AP_BattMonitor_INA3221.cpp b/libraries/AP_BattMonitor/AP_BattMonitor_INA3221.cpp
index 2abb597746368..b0804de780275 100644
--- a/libraries/AP_BattMonitor/AP_BattMonitor_INA3221.cpp
+++ b/libraries/AP_BattMonitor/AP_BattMonitor_INA3221.cpp
@@ -73,7 +73,7 @@ const AP_Param::GroupInfo AP_BattMonitor_INA3221::var_info[] = {
     // @Range: 0 3
     // @User: Advanced
     // @RebootRequired: True
-    AP_GROUPINFO("I2C_BUS", 56, AP_BattMonitor_INA3221, i2c_bus, HAL_BATTMON_INA3221_BUS),
+    AP_GROUPINFO("I2C_BUS", 22, AP_BattMonitor_INA3221, i2c_bus, HAL_BATTMON_INA3221_BUS),
 
     // @Param: I2C_ADDR
     // @DisplayName: Battery monitor I2C address
@@ -81,7 +81,7 @@ const AP_Param::GroupInfo AP_BattMonitor_INA3221::var_info[] = {
     // @Range: 0 127
     // @User: Advanced
     // @RebootRequired: True
-    AP_GROUPINFO("I2C_ADDR", 57, AP_BattMonitor_INA3221, i2c_address, HAL_BATTMON_INA3221_ADDR),
+    AP_GROUPINFO("I2C_ADDR", 23, AP_BattMonitor_INA3221, i2c_address, HAL_BATTMON_INA3221_ADDR),
 
     // @Param: CHANNEL
     // @DisplayName: INA3221 channel
@@ -89,7 +89,7 @@ const AP_Param::GroupInfo AP_BattMonitor_INA3221::var_info[] = {
     // @Range: 1 3
     // @User: Advanced
     // @RebootRequired: True
-    AP_GROUPINFO("CHANNEL", 58, AP_BattMonitor_INA3221, channel, 1),
+    AP_GROUPINFO("CHANNEL", 24, AP_BattMonitor_INA3221, channel, 1),
 
     // CHECK/UPDATE INDEX TABLE IN AP_BattMonitor_Backend.cpp WHEN CHANGING OR ADDING PARAMETERS