Hi all I have a 2017 KUGA titanium 2.0 diesel auto awd which has had the dreaded flat battery a few times!! After reading some of the threads on here I’ve unpaired my phone and then drove from Coventry to Leicester and back then rugby in the afternoon all while turning my display off and lights off instead of auto. Then this morning it’s flat again!! Is it safe to disconnect the battery for a drain test?? Or will this throw up other issues?