There are currently 4 battery sizes available for hearing aids. Sizes from smallest to largest: 10, 312, 13 and 675.
Hearing battery types vary slightly in size, so to make buying batteries for your hearing aids easier, manufacturers color-code each battery size:
- Type #10 - 5.8mm diameter x 3.6mm high
- Type #312 is 7.9mm diameter x 3.6mm high.
- Type #13 is 7.9mm diameter x 5.4mm high.
- Type #675 is 11.6mm diameter 5.4mm high.
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