kweld undercurrent

Hi all,
I’ve been using a kweld for quite some time (with the same battery Turnigy Rapid 5500 140c).
Now the kweld have started making some issues, it wont weld as it keeps saying ‘undercurrent’.

Here is a video of it : IMG_3506.MOV - Google Drive ( just watch the first minute )

Does anyone know where the issue is here?

Using the same batteries and also had a problem. But now Iam not able find communication with kweld. Contact them via email on their website. They will respond You.

If u have more than one, connect them in parallel and try that.

thanks all… the issue was with the battery. i bought two new ones, put them in parallel and all is well now.

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