I think the best thing to do is to be sure it's turned on. Health of LiPo cells will play a part in triggering the cutoff. Three of my ESCs that are the same brand , one seems to trigger sooner than the other two. So, that one gets set to 3.2v/cell. The other two get set at 3.4v/cell. I'm most comfortable with whatever setting gets my packs close to storage voltage after the cells have a chance to rest. YMMV.