PreArm: Battery 1 unhealthy (Pixhawk 6x)

omar_diaa · March 23, 2025, 12:30pm

Params are attached.
I am having the following issue: “PreArm: Battery 1 unhealthy” on a Pixhawk 6x, Holybro 650 kit. Screenshot attached for the Mission Planner screen as well. I am using a “Tattu G-tech 6S 8000mAh 25C 22.2V Lipo Battery Pack with XT60 Plug” battery

I tried the following:

Set: BATT_MONITOR = 21, BATT_I2C_BUS = 1, BATT_I2C_ADDR= 65 (as holybro docs mention here: Analog Power Module Setup | Holybro Docs)
Checked battery voltage and tried a different batter
Checked wiring, and motors are working and connected correctly
Using correct battery module: “PM02D-v1”
Haven’t yet configured GPS because working indoor, but I think this is not relevant
Checked other similar topics but no solution worked

I am pretty new to everything, so execuse me if something is not clear.

params_23_03_2025.param (18.2 KB)

Logs: 1 1-1-1970 3-00-00 AM.bin - Google Drive

amilcarlucas · March 23, 2025, 4:33pm

Battery 1 voltage is reading 0.00V
That is the issue. Probably a bad voltage input pin is configured.
Post a picture of your wiring.

omar_diaa · April 7, 2025, 8:19am

Here you go, thanks for the reply!

amilcarlucas · April 7, 2025, 8:22am

Connections look good. Double check all your battery parameters in the FC.

omar_diaa · April 7, 2025, 8:58am

Sorry, what is the FC and how to check, and what are the correct parameter values?

amilcarlucas · April 7, 2025, 9:08am

FC= flight controller

The correct parameter values depend on your vehicle and your connections.
So you need to check every parameter that starts with BATT_ and make sure the value is correct for YOUR use case.

The correct parameters for my vehicle are different from the correct parameter values for your vehicle. That is the reason why there are parameters in the first place.

omar_diaa · April 9, 2025, 7:03am

I recharged the battery and it worked out of the blue! Thanks for the quick response!