Size 10 Hearing Aid Battery

The size 10 hearing aid battery is a 1.45 V zinc-air battery. Its packaging and protective tab carry a yellow colour code; it is about 5.8 mm in diameter and 3.6 mm thick. Small devices that sit inside the ear canal run on this battery size.

Which devices use it?

Size 10 batteries are mostly used in completely-in-canal (CIC) and invisible-in-canal (IIC) devices, and also in some small receiver-in-canal (RIC) behind-the-ear models. For example, the Phonak Virto Paradise Titanium runs on this battery. There are four standard battery sizes: 10, 13, 312 and 675. Noting the size your device uses makes buying new batteries easier.

How long does it last?

Because it is small, its capacity is also limited; it lasts 3-7 days on average, depending on daily use. Battery life depends on battery quality, the device's power consumption, daily wearing hours and whether you stream sound over Bluetooth. Batteries need changing often, so always carry spares.

Fitting and changing the battery

• Remove the protective tab and leave the battery exposed for 1-2 minutes; a zinc-air battery becomes ready to work once it comes into contact with air, and this wait helps battery life.
• Open the battery door and place the + (plus) side of the battery according to the mark on the door. Never force the door shut.
• The device switches on when the door is closed.
• When the battery is running low, the device gives a warning: many devices give 3 beeps every 10 minutes, and when the voltage drops to 0.95 V they switch off sound output with six double beeps. The warning pattern can vary by model.

Safety and storage

Switch the device off when you are not using it; if you will not use it for a long time, take the battery out and leave the door open so that moisture inside can air out. Keep batteries away from children. Do not throw them into fire and do not try to charge non-rechargeable batteries; they can explode. Instead of putting used batteries in the bin, return them to the centre where you bought them.

You can get size 10 batteries from our Pendik centre. For other sizes see the size 312 battery page, and for all options see our hearing aid batteries page.