SR626SW battery equivalent

SR626SW is the silver-oxide cell Energizer and Renata sell as 377, 6.80 mm across and 2.60 mm tall, rated 1.55 V. The IEC designation on both makers’ sheets is SR66. The 376 is the same size on the datasheets.

377 or 376?

Renata’s cross-reference pairs its 377 with Maxell SR626SW, Panasonic SR626SW, Varta V377, Duracell D 377, and its 376 with Maxell SR626W, Panasonic SR626W, Energizer Eveready 376, Duracell D 376. Both are listed in full below. The rated capacity differs by part and by maker; the box below shows each figure with its test conditions.

What about LR626 / AG4?

Those codes are usually searched for alongside SR626SW. None of the maker datasheets we have checked so far is for an alkaline LR626 / AG4 cell, and neither code is printed on the SR626SW sheets or Renata’s cross-references, so we don’t list it as an equivalent.

Specs, with sources

SR626

SR626SW: 377 / 376 (silver oxide)

Maker part numbers checked: Energizer 376, Energizer 377, Renata 376, Renata 377

Chemistry

Silver oxideEnergizer 376 datasheet, PDF p. 1 · Energizer 377 datasheet, PDF p. 1 · Renata 377 datasheet, PDF p. 1 · checked 2026-09-26

Voltage

1.55 VEnergizer 376 datasheet, PDF p. 1 · Energizer 377 datasheet, PDF p. 1 · Renata 377 datasheet, PDF p. 1 · checked 2026-09-26

Diameter

6.80 mmRenata 377 datasheet, PDF p. 1 · Renata 376 product page · checked 2026-09-26

Height

2.60 mmRenata 377 datasheet, PDF p. 1 · Renata 376 product page · checked 2026-09-26

Rated capacity

Sources disagree

Each maker rates capacity under its own test load and cut-off voltage, so the figures below aren’t measured the same way.

• 24 mAh — Energizer 377 datasheet, PDF p. 1 (47 kΩ continuous, to 1.2 V); Renata 377 datasheet, PDF p. 1 (34.8 kΩ, to 0.9 V) (checked 2026-09-26)
• 26 mAh — Energizer 376 datasheet, PDF p. 1 (45 kΩ continuous, to 1.3 V) (checked 2026-09-26)
• 27 mAh — Renata 376 product page (test load not stated on the page) (checked 2026-09-26)

Codes printed on the SR626 datasheets

• SR66 printed on Energizer 376 datasheet, Energizer 377 datasheet, Renata 377 datasheet“Designation: IEC-SR66” · checked 2026-09-26
• SR626SW printed on Renata 377 datasheet“377 SR626SW (SR66)” · checked 2026-09-26

Renata’s cross-reference list

Renata, a battery maker, prints these other brands’ part numbers next to its own on each product page. They are Renata’s cross-references, not those brands’ own statements.

Renata 377: Maxell SR626SW, Panasonic SR626SW, Murata SR626SW, Toshiba SR626SW, Energizer Eveready 377, Varta V377, Rayovac 377, Duracell D 377, Timex BA, Citizen 280-39, Seiko SB-AWRenata 377 product page · checked 2026-09-26

Renata 376: Maxell SR626W, Panasonic SR626W, Murata SR626W, Toshiba SR626W, Energizer Eveready 376, Rayovac 376, Duracell D 376, Timex MARenata 376 product page · checked 2026-09-26

All codes on this page: SR66, Citizen 280-39, Duracell D 376, Duracell D 377, Energizer Eveready 376, Energizer Eveready 377, Maxell SR626SW, Maxell SR626W, Murata SR626SW, Murata SR626W, Panasonic SR626SW, Panasonic SR626W, Rayovac 376, Rayovac 377, Seiko SB-AW, SR626SW, Timex BA, Timex MA, Toshiba SR626SW, Toshiba SR626W, Varta V377.

What this page doesn’t cover

Other cells

How values are checked and what “equivalent” means here: method.