At One Place

PR41 battery

What replaces a PR41
ZA312, A312, AC312, DA312, P312, 312A
1.4 V zinc-air, 7.9 × 3.6 mm (diameter × height)

The PR41 is a single-use 1.4 V zinc-air button cell. The codes below are the same physical cell sold under different manufacturer names, and any of them will fit.

Specification

IEC designation
PR41
ANSI / NEDA
7002ZD
Nominal voltage
1.4 V
Chemistry
Zinc-air
Size
7.9 × 3.6 mm (diameter × height)
Typical capacity
181 mAh
Rechargeable
No — never charge it

Codes that mean the same battery

Different manufacturers, one physical battery. Voltage, chemistry and dimensions all match.
Code Fits?
ZA312 Yes — same cell
A312 Yes — same cell
AC312 Yes — same cell
DA312 Yes — same cell
P312 Yes — same cell
312A Yes — same cell
S312 Yes — same cell
V312 Yes — same cell
7002ZD Yes — same cell
PR41 Yes — same cell

Codes that look close but are not

Code Why it is not a substitute
Size 13 / PR48 Same 7.9 mm diameter but 5.4 mm tall instead of 3.6. Orange tab, not brown. This is the pair people mix up, because only the height differs — a 13 will not fit a 312 door, and a 312 in a 13 compartment sits loose.
SR41 / LR41 Also 7.9 × 3.6 mm, but 1.55 V silver oxide and 1.5 V alkaline respectively, sealed rather than air-breathing. Not hearing aid cells.

The PR41 is a primary cell and must never be put in a charger. Charging a sealed primary battery builds gas pressure inside a can with no vent designed for it, which is how they rupture or catch fire. Rechargeable look-alikes exist for several sizes and carry different codes — check the code, not the shape.

Where it turns up

  • Receiver-in-canal hearing aids
  • Mini behind-the-ear instruments
  • In-the-canal aids
  • The most common hearing aid size sold

Brown tab. Typically three to ten days per cell depending on how hard the aid is streaming Bluetooth audio.

Common questions

What is equivalent to a PR41?
ZA312, A312, AC312, DA312, P312, 312A, S312, V312, 7002ZD, PR41 — all the same 1.4 V cell under different manufacturer codes.
Can I use a Size 13 / PR48 instead of a PR41?
Same 7.9 mm diameter but 5.4 mm tall instead of 3.6. Orange tab, not brown. This is the pair people mix up, because only the height differs — a 13 will not fit a 312 door, and a 312 in a 13 compartment sits loose.
Is the PR41 rechargeable?
No. It is a primary cell — charging one risks rupture or fire. Rechargeable look-alikes exist in the same size under different codes.

Related pages

Sources

  1. Official vendor product documentation — At One Place

How these figures are compiled and checked