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Fifty silver oxide button cells in a plastic tray

Renata

Renata 377 / SR626SW Silver Oxide Button Battery 50-Pack

SKU CH-MQ0T-AHSF5

A 50-pack of 1.55 V silver-oxide button cells measuring 6.8 mm x 2.65 mm, compatible with 377, SR626SW and many equivalent sizes, lasting five times longer than alkaline alternatives

  • 50 batteries keep watches running longer
  • Silver oxide chemistry lasts 5 times longer than alkaline
  • 55 V output matches original watch specs
  • Compact 6.8 mm x 2.65 mm size fits slim cases
  • Replaces SR626SW, LR626, 377, AG4 and more

50-Pack 377 / SR626SW Silver Oxide Cells

This 50-pack supplies Renata 377 / SR626SW silver oxide button cells rated at 1.55 Volt. Each cell measures 6.8 mm by 2.65 mm and is designed for watches, calculators and small medical devices. The silver oxide chemistry provides stable voltage output throughout its service life.

Suits high-volume users; not for occasional needs

Buyers who maintain multiple quartz watches, clinical thermometers or portable instruments benefit from the 50-piece quantity and the chemistry that lasts five times longer than alkaline equivalents. Users needing only one or two cells for a single device should consider smaller packs to avoid long-term storage of unused batteries.

Chemistry and voltage define fit

Silver oxide chemistry at 1.55 Volt determines whether this cell matches the device requirement; alkaline equivalents in the same physical size deliver lower voltage and shorter runtime. Always verify the equipment manual calls for a 1.55 V silver oxide cell before purchasing.

How it compares

Measured against everything we stock in Household Batteries & Chargers, at today’s prices. Recalculated every night.

Price $36.99
Pricier than about 89% of the 10,440 comparable items (median $10.99).

Specifications

No published specifications for this item yet.

Questions about this item

How often will I need to replace the 377 silver-oxide cells in my watch?

Each 1.55 V cell lasts up to five times longer than an alkaline LR626, so a single battery typically powers a watch for several years before replacement.

What limits continuous current delivery from the 6.8 mm × 2.65 mm button?

The silver-oxide chemistry is optimised for low-drain devices; sustained high-current draw will cause voltage to sag well before the 50-pack is depleted.

Does the SR626SW generate noticeable heat or noise during all-day use?

No — silver-oxide button cells operate silently and produce negligible heat in normal watch or calculator loads.

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