Alkaline AA batteries (LR6) - 3 pack : ID 3521 : $2.25 : Adafruit Industries, Unique & fun DIY electronics and kits
Varta CR2/3AA 3 Volt Lithium 2/3 AA Battery
Amazon.com: 3X 1.5V (4.5V) AA Battery Holder and 9V I Type Snap Batteries Clip Connector Buckles with Cord Wire Leads Storage Box Holders Bundle Spring Clip (Pack of 3) : Electronics
3X AA Spiral High Drain Lithium Thionyl Chloride Batteries Oyster2 / Oyster3 2023 - LoneStar Tracking®
3xAA Battery Holder(with Cover and Power Switch) - DFRobot