If you fly a similar routine you can do that. Years ago when electrics only flew for 4-5 minutes I had my flights down such that I would start my approach when my timer went off. I had just enough power to land on the first attempt every time. Nothing less, nothing more. I made the most of the battery I had on board. I became very good at landing this way, when I knew I was committed because there wasn't going to be a go around. I did break one airplane though, flying at an unfamiliar field.