Iv'e collected many many batteries to shorten the time needed to complete reasearch on an item. However I can see no possible way to use them. It just says 'Buy More!' in items, and the table you might want to use it on has no way i can see to activate one or more of them. I have looked on this site over and over and can't see anything related to how to use them. It is probably obvious, but Iv'e tried everything I know. What do I do?
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