Will somebody please help me identify the Ego string trimmer item I want before I lose my mind. I already own the blower and battery and charger. I now want the telescoping string trimmer. I believe (but maybe I'm wrong?) it should be possible to buy the trimmer without the battery but all I'm seeing are ones with the battery. Or maybe all of the hedge trimmer/string trimmer/edger/pole saw type things are their own ecosystem and I do have to buy the battery? But you can buy the hedge trimmer without a battery! So confused.