You checked yourself the information ? Can you explain me how you can play 70 battles without beeing affected ?
You can do this at the first day, if you start with 100% but what is at the second day ?
It's always good to check information yourself and not to trust others.
I can tell you that you can play a maximum of 48 battles a day and to do so you should submit your battle every 30 minutes all arround the clock, as human player you won't be able to play 48 battles, if you play only once a day you can play roughly 40 battles a day without beeing affected.