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4LR44 6V alkaline cell
544 is a pack label for 4LR44 — same battery, different name on the package.
Chemistry alkaline
Voltage 6 V
Diameter 13 mm
Length 25.2 mm
Used by 4 devices Common uses: Film SLR cameras · Photographic equipment
4LR44 Diagram Brand-neutral outline — confirm the tray in your device. Advertisement · reserved
Other names Genuine aliases and pack labels for this battery — not substitutes of a different chemistry.
A544 · 544 · PX28A · 4G13 alkaline
Related codes Same battery / other names
Also sold as
Numeric pack label often used for 6V photo cells — confirm chemistry on the pack
Also sold as
Retail / ANSI-style label commonly used for 4LR44-class 6V alkaline photo cells
Same size, different battery
Same size, different type
Same 6V photo-cell form factor; 4LR44 alkaline vs PX28 silver oxide — not automatic behavioural equivalents
Commonly confused with
Not a substitute
Different voltage and form factor — 6V photo stack vs 1.35V mercury meter cell
Size family Edge thickness in the 13 mm family — thicker bar means thicker cell. Not to scale. Highlighted cell is this page.
Device-specific caveats From manufacturer-backed notes on devices that use 4LR44 — not generic advice.
Keep cells away from children. Testers & chargers Optional tools that fit this cell type — only where the chemistry allows. Separate from the battery answer.
Amazon links may earn us a commission. They do not change the battery answer.
Fluke 101 Digital Multimeter Accurate open-circuit voltage and basic electrical checks
Klein Tools MM400 Multimeter General DC voltage checks including battery terminals
AstroAI DM6000AR Digital Multimeter Budget auto-ranging voltage checks
Battery tester Quick good / low / dead check for household cells
Crude check only — does not measure capacity under realistic load.
Buy links are optional and separate from the battery answer.
Need one? Need a 4LR44 ? Search Amazon for packs of this battery code.
Buy links go to Amazon (Associates where tagged) or other affiliate programmes when available. They never change the battery answer.
Notes 6V alkaline photographic stack (four LR44-class cells in series form factor). Common modern cell for Canon AE-1 / AE-1 Program. Same outer size family as PX28 / 4SR44 (silver oxide) and PX28L (lithium) — chemistry differs. Not a 1.35V PX625 mercury cell.
