Index / Shell 26.2 x 50 mm / R14

R14

R14 — carbon zinc, 1.5 V, 26.2 x 50 mm, known as a C cell. Current. LR14 takes the same slot at the same 1.5 V; 1.2H3 drops straight in, and runs 1.2 V — -20.0%, which reads low, and it is rechargeable, never a drop-in.

What fits the compartment, and what does not

Fit answers whether it enters the compartment. Voltage answers whether the circuit will notice. A cell that fits is not always a safe substitute.

2 cells drop in and they are not equivalent: of those, 1.2H3 sits furthest at -20.0% of this cell’s 1.5 V, low enough that a calibrated instrument reads below true.

Also stamped 14D, 1235, 14F, 935, 14CD, EV135, 14C, EV35

Same size, and not the same voltage

The C compartment takes cells of more than one voltage. This one is 1.5 V; 1.2H3 in the same size runs 1.2 V, -20.0% of this cell — low enough that a calibrated instrument reads below true. Nothing about the shape warns you, which is why the label matters more here than the size does.

What the chemistry changes

Everything above answers size and voltage. What it cannot answer is chemistry, and 2 other kinds are in play here beside the carbon zinc this cell uses.

• Carbon zinc carries a fraction of the capacity of an alkaline cell of the same size and leaks more readily when spent.
• Alkaline drops in voltage steadily as it empties, so a device calibrated for a flat discharge will drift as it goes.
• Nickel-metal hydride is rechargeable and sits at 1.2 V, below the nominal of the primary cell whose slot it takes. It is never a drop-in for a primary cell no matter how well it fits, and a device that cuts off early will read it as flat.

The household slot this size sits in

R14 is a C, which is a shape rather than a specification: 7 designations share the same slot in the Energizer data this site reads under different chemistries. This one is carbon zinc at 3800 mAh. Across the C the published capacity runs from 8350 mAh (3-335) to 2200 mAh (1.2H3). The compartment does not change; the run time changes by 3.8x.

The other chemistries in this slot are alkaline and nickel-metal hydride, and only the label says which one is in your hand. 2 cells measure close enough to compare against it in the Energizer data this site reads, and 2 of them are still listed. The nearest is LR14: it drops straight in and runs 1.5 V, same volts. By stored energy it stands 2 of 3 in its envelope, at 5700 milliwatt-hours.

• 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.
• The maker still lists it, under 5 product lines: 1235, 935, A93 and EV135.

Drawn to scale

Every published figure

11 figures are published, and one is not: impedance. The row is absent rather than estimated. It reaches shelves as 1235, 935, A93 and EV135.

Energizer files 14A and A93 under this designation as well, but its records give those an alkaline chemistry rather than carbon zinc. They are a different cell, not another marking for this one.

The maker’s records filed under this designation do not all publish the same outside size. The table prints the figure most of them carry; the rest publish a height of 49.8 mm under 14C and EV35. Where the records part company the package in your hand decides, and this page cannot tell you which record it came from.

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.

What the maker says about cold

The sheet for R14 carries an operating range as well as a capacity, and it reaches -18 C (-0 F) at the cold end. 4 more published figures follow it, and none of them reaches a cross-reference table.

The part occupies 25 cubic centimeters and weighs 41 g. Capacity and voltage together put 5700 milliwatt-hours in that space. Energizer files it for Asia Pacific, Europe and Latin America.

Operating range

-18 C (-0 F) to 55 C (131 F). Below the lower figure the maker makes no claim at all, which is not the same as the cell stopping.

Cutoff voltage

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

Maker's classification

Alkaline. That is the maker's own filing word for the part, not a standard designation.

Mass against volume

41 g filling 25 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?

There is a cliff directly above it. This cell stores 5700 milliwatt-hours and the next one up stores 12000, a jump of 111% inside the same shell, which is chemistry rather than volume. Per unit of volume that is 228 mWh per cubic centimeter, denser than 27% of everything measured here.

A width the catalog keeps returning to

26.2 mm is a width this catalog keeps coming back to: 4 cylinders sit within half a millimeter of it, R14 included.

2 of those ones are still listed. Its 228 milliwatt-hours per cubic centimeter sit above 27 percent of everything here that publishes both a capacity and a volume. 36 of the 69 cylinders share its 1.5 V exactly.

• 3-335 — the next step down by volume: 23.4 cubic centimeters against this cell's 25.
• 3-335NNCI — the next step up: 25.2 cubic centimeters, 101% of this one.
• 1.2H3 — 26.2 x 50 mm, 1.2 V, nickel-metal hydride.
• LR14 — 26.2 x 50 mm, 1.5 V, alkaline.

Names filed here that belong to another chemistry

The maker files 2 names under this designation with a different chemistry recorded against 2 ones. Same code, different insides, and the package is the only place that says which.

• 14A — filed under this designation by the maker but recorded as alkaline, which is a different cell in the same shape.
• A93 — filed under this designation by the maker but recorded as alkaline, which is a different cell in the same shape.
• 14D — a manufacturer part number for R14, not a standard designation.
• 1235 — a manufacturer part number for R14, not a standard designation.
• 14F — a manufacturer part number for R14, not a standard designation.
• The maker's own catalog carries 5 product lines under it.

The cell that differs only in depth

The code says the size, so the cells that get confused with R14 are the ones that keep its diameter and change its depth. 2 cells share this diameter at depths from 46.7 to 47.2 mm, and every one of them enters the same opening.

It stands 2 of 3 in this envelope by stored energy. On a scale the difference shows before it shows on a caliper: this one weighs 41 g.

• 3-335NNCI — same diameter, 46.7 mm tall against this cell's 50: 3.3 mm shallower, which neither designation carries.
• 3-335I — same diameter, 47.2 mm tall against this cell's 50: 2.8 mm shallower, which neither designation carries.
• 1.2H3 — the same 26.2 x 50 mm in nickel-metal hydride at 1.2 V. Identical on a caliper, different in the circuit.
• LR14 — the same 26.2 x 50 mm in alkaline at 1.5 V. Identical on a caliper, different in the circuit.
• 6F24 — 25.4 mm across at 9 V against 26.2 mm here, 0.8 mm apart: loose in this holder.

One figure the maker does not publish

One field is empty for R14: impedance. 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 5 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: 26.2 x 50 mm, published and checked against the designation itself.

• No impedance — so this page cannot tell you whether the cell can drive a pulse, which is the whole question in a watch or a sensor.

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 is one relation between two cells, and this page prints it from the cell it is about — in every table on the page, including the one listing cells no longer made. A figure always belongs to the cell whose voltage is printed beside it: a cell that runs lower than this one carries a minus here, one that runs higher carries a plus, and two cells at the same nominal voltage carry zero. Meet the same pair on the other cell’s page and the sign is the other one, with the figure taken against that cell instead of this one; where the two run 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

The shell is shared across chemistries: 2 cells sit at exactly this size in alkaline and nickel-metal hydride. Same hole, different insides, different discharge curve.

• 1.2H3 — 26.2 x 50 mm, 1.2 V
• LR14 — 26.2 x 50 mm, 1.5 V
• 3-335NNCI — 26.2 x 46.7 mm, 1.5 V
• 3-335I — 26.2 x 47.2 mm, 1.5 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

R14 is assembled from 5 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 60, listed as 1235, active in the snapshot. Technical data sheet: 1235.pdf.
2. [2] Energizer catalog record 697, listed as 935, obsolete in the snapshot. Technical data sheet: 935.pdf.
3. [3] Energizer catalog record 872, listed as EV135, obsolete in the snapshot. Technical data sheet: ev135.pdf.
4. [4] Energizer catalog record 887, listed as EV35, obsolete in the snapshot. Technical data sheet: ev35.pdf.
5. [5] Energizer catalog record 1123, listed as A93, active in the snapshot. Technical data sheet: a93.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.

Putting this on a forum or a repair page? The same answer without the site around it — fit, voltage, chemistry and the limits that go with them — is at /embed/r14/. It loads nothing from anywhere else. Paste this:

<iframe src="https://batterycross.com/embed/r14/" width="100%" height="520" loading="lazy" title="R14 replacements"></iframe>