ElevationLab through Amazon has the Elevation Lab AirTag 10-Year Extended Battery Case – Uses AA Batteries for $15.99 (regularly $22.97), 2-Pack for $23.98 (regularly $33.97), 4-Pack for $35.98 (regularly $44.97) for a limited time. Shipping is Free for Prime Members or pad your order to $35 or more and score Free Super Saver Shipping.

This battery case offers over 14x more battery capacity than AirTag’s CR2032. It is easy to install and use and offers IP69 waterproof in ultra-durable case. Sound volume is about 2/3rd that of an uncased AirTag.