The Renata 366, also labeled SR1116SW or SR1116W, is a Swiss-manufactured silver-oxide button cell battery delivering a steady 1.55 V voltage and approximately 47 mAh capacity. Designed for moderate‑drain precision devices such as advanced wristwatches, calculators, keyless-entry fobs, medical instruments, and LED accessories. Featuring advanced leak-resistant sealing, mercury‑free construction, and exceptional capacity retention, it offers top-tier performance and long-term reliability.
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Coin and Button Cell| Feature | Detail |
|---|---|
| Brand / Model | Renata 366 (SR1116SW / SR1116W) |
| Chemistry | Silver Oxide (Zn/Ag₂O), mercury-free |
| Nominal Voltage | 1.55 V |
| Capacity | ~47 mAh |
| Diameter | 11.6 mm |
| Height (Thickness) | ~1.6–1.7 mm |
| Weight | ~0.75 g |
| Operating Temp Range | ~−10 °C to +60 °C |
| Shelf Life / Self‑Discharge | 3–5 years; low self-discharge (~<10%/yr) |
| Leak Resistance | Advanced sealing technology |
| Rechargeable | No (primary cell) |
| Cross‑references | Equivalent to Maxell SR1116SW, Varta 366, Energizer 366, Citizen 280‑46, among others |
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