Renata 395/SR57 Silver Oxide Button Battery 5-Pack

Renata 395/SR57 Silver Oxide 5-Pack

This pack contains five Renata silver oxide button cells rated at 1.55 Volt. Each cell measures 9.5 mm by 2.6 mm and suits watches, calculators and small medical devices. The chemistry provides stable voltage output for precision electronics. Buyers needing rechargeable cells or larger cylindrical formats should choose a different product.

Capacity and Headroom

Silver oxide chemistry lasts about five times longer than alkaline equivalents in the same 395/SR57 size. The 5-piece quantity covers multiple device replacements or spares for professional use. Capacity runs out when the voltage drops below the device cutoff threshold. High-drain applications that exceed the cell's continuous current capability will deplete it faster.

Thermals, Noise and Power Draw

Button cells generate no audible noise and produce negligible heat during normal low-current operation. Self-discharge is very low, so stored cells retain charge for years. Power draw depends entirely on the host device's circuit design. No thermal management or ventilation is required for these components.