There would be no limits on how many times or where you could teleport. The items you hold while teleporting would be teleported too.
Sure, if you choose to change the parameters from what OP said, it might change the outcome.
That said, the other guy already answered you. It would become less efficient if you only had your body weight, but it still a solve of unlimited (though small volume) energy.
I doubt it, I have a Galaxy S25