Energizer 377 Batteries (2 Pack), 1.5V Silver Oxide Button Cell Batteries 377BPZ-2 - The Home Depot
Duracell 389/390 Watch Battery (SR1130W) Silver Oxide 1.55V (1 PC). With a long-lasting charge that requires fewer recharges, Duracell Specialty and Rechargeable batteries really do set themselves apart from the rest.