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321 battery (SR616SW)
SR616SW: 1.55 V silver oxide button cell, 6.8 mm × 1.65 mm, about 14 mAh (22 mWh). Same battery: 321.
1.55 Vvoltage
6.8 mmdiameter, 0.268 in
1.65 mmthick, 0.065 in
≈ 14 mAhcapacity
SR616SW: what to know
- It shares the 6.8 mm width of the 364 and 377 but is only 1.65 mm thick, the thinnest of the three.
SR616SW equivalents
321
Can I use another battery instead of an SR616SW?
| Battery | Size | Volts | Works? | Why |
|---|---|---|---|---|
| LR621 | 6.8 mm × 2.15 mm | 1.5 V | No | 0.5 mm thicker: will not fit. |
| SR621SW | 6.8 mm × 2.15 mm | 1.55 V | No | 0.5 mm thicker: will not fit. |
| LR626 | 6.8 mm × 2.6 mm | 1.5 V | No | 0.95 mm thicker: will not fit. |
| SR626SW | 6.8 mm × 2.6 mm | 1.55 V | No | 0.95 mm thicker: will not fit. |
What uses an SR616SW battery?
- Thin watches