Bad Battery Troubleshooting

Created by Franziska Möller, Modified on Fri, 29 Nov, 2024 at 2:30 PM by Franziska Möller

If you suspect that batteries are in poor condition, the robot won't charge, spends a lot of time at the charger, and/or is experiencing [124]BATTERY_TOO_LOW errors:


Before beginning, confirm that the charger is working with other robots.


  1. Perform a load test on the batteries. Charge for at least 4 hours on a standalone charger (without a robot). See if this resolves the issue.
  2. Check the charge connector and charge socket on the robot for damage or deformities.
  3. Check Molex connectors on the batteries. Are they burnt, loose, or open?
  4. Check Molex connectors on the power board. Are they burnt or damaged?
  5. Check Molex connectors on the fuse box. Are they burnt or damaged?
  6. Check fuse box where the mini-PCB joins the three wires. Are there any loose screws?

Was this article helpful?

That’s Great!

Thank you for your feedback

Sorry! We couldn't be helpful

Thank you for your feedback

Let us know how can we improve this article!

Select at least one of the reasons
CAPTCHA verification is required.

Feedback sent

We appreciate your effort and will try to fix the article