Energizer 387S Low-Drain 1.55V Silver-Oxide Button Cell Battery
Designed for use in continuous, low-drain applications such as photography equipment, pagers, and calculators, Energizer's 387S button cell battery offers endurance and reliability. The 1.55-volt, silver-oxide battery is rated for approximately 600 hours' use, and its average capacity is 60 mAh to 1.3 volts. The battery measures 11.6 mm in diameter (.457 inches) and stands 3.6 mm (.42 inches) thick. This battery replaces the Rayovac model RW51.