I found a black Anker PowerCore 10000 portable charger with a gray braided USB-C cable still attached. It's palm-sized, about the size of my palm, with a small dent on the corner and a blue rocket sticker on the back. I found it this afternoon around 3:15pm in the parking lot behind the Dayton Arcade on East 2nd Street, near the bike racks. It still shows about 46% charge on the display. It's clearly someone's everyday carry; I'm happy to help return it to the owner.
Approximate area where the item was last seen