PM02D & Pixhawk 6X - Unhealthy battery in mission planner

ArduCopter Copter 4.4
1

I have a Pixhawk 6x and am powering it via HolyBro’s PM02D. I followed their documentation and set the following parameters:

  • BATT_MONITOR = 21

  • BATT_I2C_BUS = 1

  • `BATT_I2C_ADDR’ = 65

But I am still seeing 0v and 0A for Bat1. I’m also seeing PreArm: Battery 1 unhealthy.

I did check the battery and all cells are balanced, appropriate voltage at 4.2V, etc. Also as a sanity check- yes I have plugged into the power1 slot. Anyone know what could be going wrong?

myparams.param (18.1 KB)

2

Everyone,

I figured it out. Despite purchasing the PM02D (2S-6S batteries), I was given a high voltage (HV) version. This requires BATT_I2C_ADDR = 69.

There is a marking on the bottom of the PCB that indicated LV or HV. If someone else runs into this issue, be sure to double check that marking

3

Looks like they started only selling the HV version too.