Keep your Size 312 hearing aid batteries organised and protected with this portable, rotatable battery case. Made from durable PC material, it holds up to 8 batteries in individual slots to prevent short circuits and scratches. The slim design (only 8.4mm thick) fits easily in your pocket or wallet, and the included keychain lets you attach it to keys or backpack for quick access. The rotatable cover allows accurate, one-way battery access and locks securely to seal out dust, extending battery life. Perfect for Size 312, 13, and 10 zinc-air batteries with standard tabs (not for extra-long or square tabs). Available in blue.
