Home Depot has this 2 pack of Ryobi 18v 4.0 + HP batteries on sale for $59. These were front page almost a month ago for $83. They also have the non HP for the same price.
https://www.homedepot.com/p/RYOBI-18-Volt-ONE-Lithium-Ion-LITHIUM-HP-4-0-Ah-High-Capacity-Battery-2-Pack-P152/305883624?irgwc=1&cm_mmc=afl-ir-118528-456723-&clickid=z2e0m1QRIxyJRi-wUx0Mo382UklX23SJL0QQRw0
https://www.homedepot.com/p/RYOBI-18-Volt-ONE-Lithium-Ion-4-0-Ah-High-Capacity-Battery-2-Pack-P173/304740790?irgwc=1&cm_mmc=afl-ir-118528-456723-&clickid=z2e0m1QRIxyJRi-wUx0Mo382UklX2UVNL0QQRw0