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Battery Equivalent Chart

AC41E Battery Equivalent (Hearing Aid)

AC41E is the same cell as PR43, so any of those codes will fit.

Chemistry
zinc air (hearing aid)
Voltage
1.45 V
Size (Ø × H)
11.6 × 4.2 mm
Typical capacity
390 mAh

IEC designation PR43.

AC41E drawn to scale: 11.6 mm across and 4.2 mm thick, beside a US quarter at 24.26 mm across. US quarter Ø 11.6 mm 4.2 mm thick
AC41E at actual relative size: 11.6 mm across, 4.2 mm thick. The dashed circle is a US quarter, 24.26 mm across (US Mint coin specifications).

AC41E equivalents

Similar size, check the fit

Same diameter, different thickness. These are not drop-in replacements.

Cell Size Verdict
675 11.6 × 5.4 mm Same 11.6 mm diameter, but 5.4 mm tall instead of 4.2 mm. Only if the holder fits; thinner cells can lose contact.

Do not use

These are the same size or a similar code, and they are not equivalents.

  • SR43

    Not an equivalent. AC41E is the same size, but it is a zinc-air hearing-aid cell: 1.45 V, it needs its air holes left open, and it starts draining as soon as the tab comes off.

  • LR43

    Not an equivalent. AC41E is the same size, but it is a zinc-air hearing-aid cell: 1.45 V, it needs its air holes left open, and it starts draining as soon as the tab comes off.

About the AC41E cell

Activate by removing the tab; not a substitute for alkaline/silver cells of the same size.

AC41E questions

Is PR43 the same as AC41E?
Yes. PR43 is another code for the same cell: zinc air (hearing aid), 1.45 V, 11.6 × 4.2 mm.
Will 675 work in place of AC41E?
Same 11.6 mm diameter, but 5.4 mm tall instead of 4.2 mm. Only if the holder fits; thinner cells can lose contact.
Can I use SR43 instead of AC41E?
No. Not an equivalent. AC41E is the same size, but it is a zinc-air hearing-aid cell: 1.45 V, it needs its air holes left open, and it starts draining as soon as the tab comes off.
Can I use LR43 instead of AC41E?
No. Not an equivalent. AC41E is the same size, but it is a zinc-air hearing-aid cell: 1.45 V, it needs its air holes left open, and it starts draining as soon as the tab comes off.
What voltage is AC41E?
AC41E is a 1.45 V zinc-air cell with a typical capacity of 390 mAh.
What size is AC41E?
11.6 mm across and 4.2 mm thick, the same case size as the PR43 designation.

Related

Other cells 11.6 mm across

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