I'm glad my lil research has been validated. Last week I bought one of those adapter cases that accommodate 6 1.5Vs but have 9V terminals. Now how to tape that

I'm glad my lil research has been validated. Last week I bought one of those adapter cases that accommodate 6 1.5Vs but have 9V terminals. Now how to tape that case to my little robot. And I don't know much, so thank you.