Amazon.com: 4 Pcs Duracell PX28A Alkaline Medical Battery 6V A544 4LR44 28A : Health & Household
Amazon.com: 5x Duracell 28A 6V Battery Replacement for A544, PX28A, 476AF, 4LR44, V4034PX : Health & Household
Amazon.com: Duracell J 6V Alkaline Battery, 1 Count Pack, J 6 Volt Alkaline Battery, Long-Lasting for Cameras, Medical Devices, Remote Controls, and More : Electronics
EBL 6 Volt Battery 4LR44 Dog Collar Batteries (10 Pack) 6V Alkaline Batteries 476A / PX28A / A544 / K28A / L1325 : Health & Household - Amazon.com
Amazon.com: Eunicell 10 x 4LR44 4G13 L1325 A544 476A 6v Alkaline Batteries for Dog Collar, Alarm, Remote,Anti bark Collars, Door Bells, Key fobs etc. : Health & Household
Amazon.com: 28A 4LR44 PX28 A544 PX28A 4G13 V4034PX 6V Single Time Use Alkaline Battery (50 Batteries) : Health & Household