Index / 335

335 battery equivalent: what to use instead

335 silver oxide battery — 1.55 V, 5.8 x 1.2 mm. Any brand's 335 is this same cell. Nothing else in the data shares its size. Battery equivalent chart for every other code.

What fits the compartment, and what does not

335 battery equivalent chart: candidates for a 335 battery replacement, one row each. Fit answers whether it enters the compartment. Voltage answers whether the circuit will notice. A cell that fits is not always a safe substitute.

Nothing Energizer still lists is the same depth. The 4 options below share the diameter and run 1.6 to 3.6 mm against this cell's 1.2, and every one of them is deeper than this cell, so the question is not the contact but the cover: a deeper cell goes into the opening and stops the lid closing.

Nothing else is stamped on this one

Nothing else is printed on 335 in the Energizer data this site reads: one designation, no trade marking, no maker's part number, and no long form in the standard's table. A cell measuring 5.8 x 1.2 mm carries its whole identity in 3 characters.

The cell that differs only in depth

The code says the size, so the cells that get confused with 335 are the ones that keep its diameter and change its depth. 5 cells share this diameter at depths from 1.6 to 3.6 mm, and every one of them enters the same opening.

• 317 — same diameter, 1.6 mm tall against this cell's 1.2: 0.4 mm deeper, which neither designation carries.
• 1191SO — same diameter, 2.1 mm tall against this cell's 1.2: 0.9 mm deeper, which neither designation carries.
• PR63 — same diameter, 2.1 mm tall against this cell's 1.2: 0.9 mm deeper, which neither designation carries.
• 164 — 6.8 mm across at 1.4 V against 5.8 mm here, 1 mm apart: too wide to enter in this holder.
• 321 — 6.8 mm across at 1.55 V against 5.8 mm here, 1 mm apart: too wide to enter in this holder.
• On a scale the difference shows before it shows on a caliper: this one weighs 0.1 g.

The Energizer data sheets behind this page do not agree on impedance (30 to 65 ohms over 2 sheets), so each figure is printed as the range the sheets give, not as one of them.

The thinnest rung of its diameter

This is the thinnest coin cell made at 5.8 mm across, 1.2 mm deep. The 5 other cells at this diameter are all taller, up to 3.6 mm, which means the swap runs one way only: they will not go where this one fits.

What this cell can stand in for

1 designation Energizer no longer lists points at this cell as the closest thing it does list, and the voltage is not the same: in a device built for one of them this cell runs up to 10.7% off. The device will run, and an instrument calibrated for the old cell will read off.

Each row names a cell no longer made, with its own voltage and chemistry. Fit of this cell and Voltage of this cell describe this cell put in its place: whether it enters that compartment, and how far its voltage sits from the voltage the device was built for. The discontinued cell’s own page prints the same figure for the same swap.

What the chemistry changes

Everything above answers size and voltage. What it cannot answer is chemistry, and 1 other kind is in play here beside the silver oxide this cell uses.

• Silver oxide holds its voltage almost flat until it is spent, which is why watches and light meters were built around it.
• Zinc air takes oxygen from the air through the holes in its face. It starts discharging the moment the tab comes off and runs down in weeks whether the device is used or not, and a sealed compartment starves it.

What a watch movement does with this cell

A quartz movement pulls a short pulse through the cell every second and reads the voltage between pulses. That is why the chemistry in this envelope matters more than the size does. Silver oxide holds 1.55 V nearly flat until it is spent.

Internal impedance 30 to 65 ohms, published by the maker. That is the figure the stepper motor pulse sees, and it rises as the cell ages. 4 cells measure close enough to compare against it in the Energizer data this site reads, and 4 of them are still listed. The nearest is 319: it goes in and stands too tall and runs 1.55 V, same volts. The maker still lists it, under 1 product line: 335.

• Energizer files it for Asia Pacific, Europe, Latin America and North America, which is where the part is sold rather than where the cell will work.

Drawn to scale

Every published figure

Every field the maker fills is filled for this one: 11 figures in all, from chemistry through to where it is sold.

2 rows in the table are not the maker's but ours: stored energy and energy per cubic centimeter. Everything else is reproduced without change.

The number a pulse sees

Energizer publishes an impedance band of 30 to 65 ohms for 335. It is the least quoted number on the sheet and the one that decides whether the cell can drive a pulse; 3 other published figures sit below.

The part occupies 0.03 cubic centimeters and weighs 0.1 g. Capacity and voltage together put 9 milliwatt-hours in that space. Energizer files it for Asia Pacific, Europe and Latin America.

Internal impedance

30 to 65 ohms as published. A high-impedance cell sags under a pulse and recovers between pulses, which is what a movement or a sensor sees.

Cutoff voltage

1.2 V. The published capacity is counted down to this voltage; a device that quits higher up sees less than the whole figure.

Mass against volume

0.1 g filling 0.03 cubic centimeters. When the printing has worn off, a kitchen scale separates two cells of one envelope faster than a caliper does.

Where the part is filed

Asia Pacific, Europe, Latin America and North America. That is a statement about the maker's distribution and not about where the cell works.

Is that a lot of energy?

Nothing else measured shares this shell, so the comparison has to go site-wide: 9 milliwatt-hours in 0.03 cubic centimeters is 310 mWh per cc, denser than 42% of every cell measured here. Density is ours: the maker publishes capacity and volume and never divides one by the other.

A width the catalog keeps returning to

5.8 mm is a width this catalog keeps coming back to: 5 coins sit within half a millimeter of it, 335 included.

4 of those ones are still listed. Its 310 milliwatt-hours per cubic centimeter sit above 42 percent of everything here that publishes both a capacity and a volume. 30 of the 79 coins share its 1.55 V exactly.

• 333 — the next step up: 0.038 cubic centimeters, 127% of this one.
• 1191SO — 5.8 x 2.1 mm, 1.55 V, silver oxide.
• PR63 — 5.8 x 2.1 mm, 1.4 V, zinc air.
• PR70 — 5.8 x 3.6 mm, 1.45 V, zinc air.

One figure the maker does not publish

One field is empty for 335: operating temperature. A blank means the maker publishes no figure, which is not the same as zero, and it is the reason one comparison below is missing rather than wrong.

The blanks are the same in all 2 records behind this designation, so they are the catalog's silence and not a merge losing a value. What is not missing is the envelope: 5.8 x 1.2 mm, published and checked against the designation itself.

• No operating temperature — so this page cannot tell you whether the maker claims anything at all below freezing.

Before you swap anything

Everything here is computed from published dimensions and nominal voltages. That answers whether a cell enters the compartment and whether the voltage matches on paper. It does not answer what your device does with the difference, and it cannot: a cell that fits can still be the wrong cell.

One more limit, and it is the biggest. This site reads a single manufacturer’s catalog. When a page says a designation is not listed, that means Energizer no longer offers a part under it — not that nobody makes the cell. Other makers may still sell it, and for common sizes they usually do.

A voltage difference here is the figure for one swap: the voltage of the cell that goes in, measured against the cell the device was built for, and the figure belongs to the cell whose voltage is printed beside it. In the table of cells that fit in place of this one, and on the scale, that is each candidate against this cell: a cell that runs lower carries a minus, one that runs higher carries a plus, and a cell at the same nominal voltage carries zero. In the table of cells no longer made, it is this cell against each of them, because the swap goes into a device built for the old cell, and that cell’s own page prints the same figure for the same swap. Where cells still listed can each stand in for the other, those are different swaps: each page measures against its own cell, the sign is the other one, and the size can differ slightly, because one gap is a larger share of the lower voltage; at the same voltage both pages print zero. The class beside the figure is not read off that figure directly. It is decided on the gap itself, taken against the higher of the two nominal voltages, so one pair of cells gets one class whichever page you meet it on: counted from this side the boundary of the class that still runs falls at 20.0% below and 25.0% above, which is the same gap divided once by the larger nominal and once by the smaller. What genuinely differs between the two directions is the consequence, and the words carry it: a cell that runs low makes a calibrated instrument read below true, and a cell that runs high makes it read above.

3 things this site cannot see. Whether the contacts reach a shorter cell. Whether the device was calibrated for a chemistry that holds its voltage flat, which silver oxide does and alkaline does not. Whether the equipment tolerates the higher current a different chemistry can deliver. Rechargeable cells are never a drop-in for primary cells regardless of size.

Cells measured next to this one

Nothing in this data is this exact size, but the diameter is a well populated one: 5 cells run from 1.6 to 3.6 mm deep, and this cell is one point on that scale.

• 317 — 5.8 x 1.6 mm, 1.55 V
• 1191SO — 5.8 x 2.1 mm, 1.55 V
• PR63 — 5.8 x 2.1 mm, 1.4 V
• 319 — 5.8 x 2.7 mm, 1.55 V

Where these numbers come from

Dimensions, voltages, chemistries and capacities are published by the manufacturer and reproduced without change. Everything else on the page is ours, computed from those figures: whether one cell fits where another sat, how far apart their voltages are, stored energy and energy per cubic centimeter, the rank within a shell, and the check of the designation against the measured size.

Fit is decided within 0.3 mm on every axis, which is the order of a contact spring's travel. Voltage classes are decided by consequence, not by roundness, and they are decided on the gap between two nominal voltages taken against the higher of the two: 2.0% or less of it is the same working voltage, 6.0% starts to matter to a calibrated instrument, and past 20.0% it is a different class altogether. Measuring the gap against the higher figure is what makes the verdict the same from either cell’s page, while the printed percentage stays counted from the cell you are reading about. Cells with identical stored energy share a rank instead of being ordered arbitrarily.

Ranking uses capacity times nominal voltage, because capacity alone is not comparable across chemistries: 150 mAh at 3 V is twice the energy of 150 mAh at 1.5 V. Neighbors are chosen by measurement and never alphabetically, because two cells filed next to each other by name usually have nothing in common. A blank in any table means the maker publishes no figure, which is not the same as zero.

Source: Energizer technical data, retrieved 1 September 2026.

Records that disagree behind this page

335 is assembled from 2 catalog records, and they do not agree with each other on every field. Both sides are numbered below so the disagreement can be read rather than taken on trust.

1. [1] Energizer catalog record 105, active in the snapshot. Technical data sheet: 335z.pdf.
2. [2] Energizer catalog record 456, obsolete in the snapshot. Technical data sheet: 335.pdf.

Every figure above is reproduced from those records without change; the comparisons are ours and are described on the method page. Snapshot: Energizer technical data, retrieved 1 September 2026.

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