Yes, there is!
Unlike many other apps, this is a pro feature that you don’t have to pay for. You are a smart 
Torrent Pro user, and you know that Torrent Pro gives you all the pro features for free. How awesome is that?
To activate this feature, go to the Torrent Pro settings page and look for the ‘Battery Saver’ option. There you can choose to ‘Download and upload only when charging’ and set a ‘Custom battery percentage’. This will stop your downloads and uploads when your battery reaches a certain level. That way, you can save your precious juice for more important things,