disconnecting cable harness on live battery

I have a 72v bbshd setup. the battery plugs spark quite badly when connecting them so am hesitant to disconnect the battery by disconnecting the xt90s. Is it ok the disconnect the cable harness between the controller to the display on a live battery?

Consider adding an xt-90 anti-spark adapter ; https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313&_nkw=xt90+anti+spark+adapter&_sacat=0