Edited February 24, 2021
at 08:54 AM
Direct Tools Outlet [directtoolsoutlet.com]
has a "Buy One Get One Free" special on the Ryobi P197 4Ah factory reconditioned battery for $49.99 in-store or $7 flat rate shipping.
With all the Ryobi tool-only deals lately, these batteries would be a good fit at $25 each for those seeking batteries. The Ryobi P197 4Ah battery uses the exact same cells as the Ryobi P192 4Ah HP battery, so you get the same performance on brushed tools.
Home Depot [homedepot.com]
sells the Ryobi P197 2-Pack for $79.
When the Ryobi P197 battery is added to the cart, the free battery is automatically added.