The longest 1 percent

i was lying in my bed one night and I wanted to see how long I could keep my iPad at 1 percent so I turned down the brightness I closed al the tabs on safari and on my apps and I cleared all my emails and waited I was able to keep it on 1 percent for 5 minutes I don't know if you can do longer at least I can't so if you have comment below and I will see how long I can go with your methods and mind