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Battery Information
Battery Details

Same physical size as the LR41 button cell (1.5 Volt).

NiMH rechargeable batteries of this size are available but may not be suitable for all hearing aids.

Equivalents:

312, 312A, 312AE, 312AP, 312DS, 312HP, 312HPX, 312MF, 312P, 312PA, 312SA, 312UP, 312ZA, 7002ZD, AC312, AC312E, AC312E/EZ, AC312EZ, AC-312E, AP312, B312BA, B3124, B347PA, Brown, CP41, DA312, DA312H, DA312H/N, DA312N, DA312X, E312E, H312AE, L312ZA, ME7Z, P312, PR41, PR312, PR312H, PR312PA, PR-312PA, PZ312, PZA312, R312ZA, RS312, S312A, Size 312, V312A, V312AT, VT312, W312ZA, XL312, ZA312.

Image
not to scale. 		Common
Name. 		Dimensions.
Diameter × Thickness. 		Chemical Composition. Nominal Voltage.
battery Hearing Aid Brown 7.9 mm × 3.6 mm

Contacts:
Case Positive.
Raised area Negative
layout

NiMH

Zinc - Air.

1.2 v.

1.35 v
(130 mAh).

Button & Coin Equivalents page, Consumer Battery Equivalents page or Sitemap.