diff --git a/ArduPlane/Parameters.pde b/ArduPlane/Parameters.pde
index bdd460ded5..6bf5941342 100644
--- a/ArduPlane/Parameters.pde
+++ b/ArduPlane/Parameters.pde
@@ -670,13 +670,13 @@ const AP_Param::Info var_info[] PROGMEM = {
 
     // @Param: VOLT_DIVIDER
     // @DisplayName: Voltage Divider
-    // @Description: Used to convert the voltage of the voltage sensing pin (BATT_VOLT_PIN) to the actual battery's voltage (pin_voltage * VOLT_DIVIDER). For the 3DR Power brick, this should be set to 10.1. For the PX4 using the PX4IO power supply this should be set to 1.
+    // @Description: Used to convert the voltage of the voltage sensing pin (BATT_VOLT_PIN) to the actual battery's voltage (pin_voltage * VOLT_DIVIDER). For the 3DR Power brick on APM2 or Pixhawk, this should be set to 10.1. For the PX4 using the PX4IO power supply this should be set to 1.
     // @User: Advanced
     GSCALAR(volt_div_ratio,         "VOLT_DIVIDER",   VOLT_DIV_RATIO),
 
     // @Param: APM_PER_VOLT
     // @DisplayName: Apms per volt
-    // @Description: Number of amps that a 1V reading on the current sensor corresponds to
+    // @Description: Number of amps that a 1V reading on the current sensor corresponds to. On the APM2 or Pixhawk using the 3DR Power brick this should be set to 17.
     // @Units: A/V
     // @User: Standard
     GSCALAR(curr_amp_per_volt,      "AMP_PER_VOLT",   CURR_AMP_PER_VOLT),
@@ -697,15 +697,15 @@ const AP_Param::Info var_info[] PROGMEM = {
 
     // @Param: BATT_VOLT_PIN
     // @DisplayName: Battery Voltage sensing pin
-    // @Description: Setting this to 0 ~ 13 will enable battery current sensing on pins A0 ~ A13. For the 3DR power brick on APM2.5 it should be set to 13. On the PX4 it should be set to 100.
-    // @Values: -1:Disabled, 0:A0, 1:A1, 13:A13, 100:PX4
+    // @Description: Setting this to 0 ~ 13 will enable battery current sensing on pins A0 ~ A13. For the 3DR power brick on APM2.5 it should be set to 13. On the PX4 it should be set to 100. On the Pixhawk powered from the PM connector it should be set to 2.
+    // @Values: -1:Disabled, 0:A0, 1:A1, 2:Pixhawk, 13:A13, 100:PX4
     // @User: Standard
     GSCALAR(battery_volt_pin,    "BATT_VOLT_PIN",    BATTERY_VOLT_PIN),
 
     // @Param: BATT_CURR_PIN
     // @DisplayName: Battery Current sensing pin
-    // @Description: Setting this to 0 ~ 13 will enable battery current sensing on pins A0 ~ A13. For the 3DR power brick on APM2.5 it should be set to 12. On the PX4 it should be set to 101. 
-    // @Values: -1:Disabled, 1:A1, 2:A2, 12:A12, 101:PX4
+    // @Description: Setting this to 0 ~ 13 will enable battery current sensing on pins A0 ~ A13. For the 3DR power brick on APM2.5 it should be set to 12. On the PX4 it should be set to 101. On the Pixhawk powered from the PM connector it should be set to 3.
+    // @Values: -1:Disabled, 1:A1, 2:A2, 3:Pixhawk, 12:A12, 101:PX4
     // @User: Standard
     GSCALAR(battery_curr_pin,    "BATT_CURR_PIN",    BATTERY_CURR_PIN),