Ok thanksYou don't have the connector that I mentioned before, so there is no line, no way it can be a problem and there's nothing to check with it.
Next time you get a cut-out, look at whatever you have on your handlebars that tells you the battery charge state. If the lights go out at the time of cut-out, it's a battery issue or battery connection. If they stay on uninterrupted, then the problem is somewhere else. That's the first thing you need to determine to get to the cause of your problem.