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Canonical battery record · checked 2 September 2026

SR1136SW / 344

The SR1136SW / 344 silver-oxide family is 11.6 × 3.6 mm. Preserve the W/SW drain designation unless current device or manufacturer guidance permits otherwise.

SR1136SW344V344
Answer

SR1136SW, 344, V344 are the supported exact aliases for one 11.6 × 3.6 mm silver-oxide watch cell. No other family is treated as an automatic replacement.

Top profile · Ø 11.6 mm
Side profile · 3.6 mm high
Original proportional profiles. Scale is consistent within this diagram; screen size is not a physical ruler.
Format
Silver-oxide watch cell
Dimensions
11.6 × 3.6 mm
Voltage
1.55 V nominal
Chemistry
Silver oxide / zinc
Drain context
SW: low-drain profile
Rechargeable?
No — primary cell; do not recharge.
Capacity context
Manufacturer- and test-condition-specific; no universal capacity is asserted from the selection guide.
Confidence
High

Equivalence and confusion matrix

Code or familyClassificationReason
SR1136SW · 344 · V344Exact equivalentThese evidence-backed markings resolve to this one canonical record and share its cited physical and electrical specification.
SR1130SW / 390Not equivalentThe physical envelopes differ (11.6 × 3.6 mm versus 11.6 × 3.05 mm). Do not force, stack or infer equivalence from a shared diameter or code pattern.
SR43SW / 301Not equivalentThe physical envelopes differ (11.6 × 3.6 mm versus 11.6 × 4.2 mm). Do not force, stack or infer equivalence from a shared diameter or code pattern.
LR54 / AG10 / LR1130Not equivalentThe physical envelopes differ (11.6 × 3.6 mm versus 11.6 × 3.05 mm). Do not force, stack or infer equivalence from a shared diameter or code pattern.
SR1130W / 389Not equivalentThe physical envelopes differ (11.6 × 3.6 mm versus 11.6 × 3.05 mm). Do not force, stack or infer equivalence from a shared diameter or code pattern.

Supported application context

  • Watches specifying this exact code and drain class

Application context is limited to the scope stated in Maxell Button and Coin Battery Cross-reference Table; it is not a device compatibility claim.

This record belongs to the watch-cell system. Maker numbers are useful aliases, while the SW low-drain designation remains part of device selection.

SR1136SW/344 is an 11.6 × 3.6 mm low-drain silver-oxide cell. It sits 0.55 mm above the 389/390 families and 0.6 mm below the 301/386 families at the same diameter.

What the code means

SR1136SW identifies a silver-oxide watch cell. The W or SW suffix is part of the supported identity and records the manufacturer drain class.

Discharge and drain behaviour

Silver-oxide cells are selected for a comparatively stable working voltage. SW: low-drain profile remains material in watch applications, so a shared diameter and height do not erase the W/SW distinction.

Capacity context: Manufacturer- and test-condition-specific; no universal capacity is asserted from the selection guide.

Substitution guidance

Treat only the aliases on this page as exact equivalents. Another cell with the same dimensions is conditional at best unless its chemistry, nominal voltage and low-drain requirement also agree with the device specification.

Fact-level evidence

Maxell Button and Coin Battery Cross-reference Table

Published by Maxell; SR1136SW row in the silver-oxide battery table. Checked 2 September 2026. Independently presented facts only; publisher wording, layout and diagrams are not reproduced.

Open primary source
Not a device-fit guarantee.

Confirm the exact code, chemistry and drain requirement with the device maker. Keep button and coin cells away from children and never recharge this primary cell.