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PX28 6V silver oxide cell
PX28L is a pack label for PX28 — same battery, different name on the package.
Chemistry silver_oxide
Voltage 6 V
Diameter 13 mm
Length 25.2 mm
Used by 4 devices Common uses: Film SLR cameras · Photographic equipment
PX28 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.
4SR44 · 544 · PX28L
Related codes Same battery / other names
Same battery
PX28 is the common photo-trade name for 4SR44-class silver-oxide 6V 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
Rechargeables are not equivalents Do not substitute a rechargeable cell unless the device documentation explicitly allows it. Silver-oxide and lookalike chemistries are not interchangeable with rechargeables by size alone.
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 PX28 — 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 PX28 ? 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.
