Thank you for your reply ,@Alex-Kushleyev .

I am indeed using a 12V AC/DC adapter.
——————————————————————————————————

I inspected the problematic motor and found that its mounting screws did not appear to be screwed into the windings, as shown in the picture below.

——————————————————————————————————
Here are the results of voxl-esc_spin tests using two different power supplies:

• The 12V AC/DC adapter appears to be working fine (adapter_voxl-esc_spin_test_video) (adapter_voxl-esc_spin_test_result.txt

• However, the battery power test results show:

1. Motor ID 0 is not working. (battery_voxl-esc_spin_test_video)

2. The Average RPMs of Motor ID 0 detected by the voxl-esc tools is significantly lower than the other three motors. The image below is a partial screenshot of the data. Please click the link for the complete data.(battery_voxl-esc_spin_test_result.txt)

)

——————————————————————————————————
Based on the above supplementary data, would you recommend that I send it for repair?

Thank you very much!

Hello, I’ve recently encountered a problem.
When operating in Position Mode, all motors work correctly after arming when powered by an AC/DC adapter. However, after switching to battery power, one of the four motors does not spin after arming.

I have two videos show this issue.

Using battery

Using Adaptor

I made some simple observations:

1. I have two batteries, so I also tried replacing the other battery for testing, but the problem remained regardless of which battery I used.

2. I visually inspected the motor and found no loose wiring or other issues. The LED indicator lights are shown in the image below.

However, one component on the ESC board appears to be rusty; I'm unsure if this has any impact. Please see the attached image below.

The device and software version I used：

Drone: Starling2 Indoor SLAM Development Drone

SDK: voxl2_SDK_1.5.0

Battery: 2S amprius silicon anode modalai battery

Voxl_inspect_services：

Voxl_version: