How else would you be able to tell when your ability will die on you? The suit should be able to amplify the length of your abilities as well.

[ He felt it was elementary to have one built in, especially since Kotetsu asked for a booster. He was enjoying this, the suit working a little better than he had hoped considering the drawbacks of this backwards planet. But when he asked about price, Joji made a face. ]

I never said anything about a fee for this.