Description: 1 battery/pack. Type: Silver Oxide Button Battery. Voltage: 1.55 volts. Capacity: 70-90mAh. Model: 389BPZ. 5-year leak-free shelf life. Equivalent to SR1130SW, SR1130W, SR54, 389, 390, D389/390, 10L122, 280-15, SB-AU, SB-BU, and RW39/49. Energizer 390/389 1.5V Silver Oxide Button Battery (1 Count) delivers steady, precision-grade power for watches, medical devices, calculators, digital thermometers, laser pointers, and other compact electronics that rely on consistent voltage for accurate, long-term performance. Its silver oxide chemistry provides a flatter discharge curve and longer, more stable runtime than alkaline button batteries, which drop voltage more quickly and offer shorter service life, while also outperforming lithium coin cells in low-drain, precision applications where stable output matters more than high-capacity bursts. Energizer's leak-resistant construction and tight manufacturing tolerances ensure dependable operation in both everyday and professional environments. This single battery is ideal for replacing worn cells in essential precision devices at home, in clinics, or in workplaces that require reliable, accurate, and long-lasting power.
Price: $3.49 USD
