Single-use battery Varta 675 PR44 Zinc-Air 5.35mm 1.16cm 1.75g

The Varta 675 PR44 Zinc-Air single-use battery is designed for hearing aids and other small electronic devices that require a compact, lightweight power source. Measuring approximately 5.35 mm in height and 11.6 mm in diameter and weighing about 1.75 g, this battery delivers a nominal voltage of 1.45 V and comes in packs of six, providing ready-to-install cells for immediate use. The Zinc-Air chemistry supplies steady output suited to low-drain, precision devices where consistent voltage and reliable runtime matter.

Advantages

Varta 675 PR44 batteries offer a stable voltage profile and reliable contact performance, making them suitable for sensitive audio devices. The Zinc-Air technology allows for high energy density in a very small form factor, keeping the battery lightweight while maintaining usable runtime. Their compact dimensions and standard PR44 sizing ensure compatibility with a wide range of hearing aids and similar devices. Each cell is single-use and requires no charging, simplifying replacement and maintenance.

Suitable for

• Behind-the-ear and in-the-ear hearing aids compatible with PR44 size
• Small medical devices and audio accessories requiring 1.45 V Zinc-Air cells
• Portable low-drain electronic equipment where compact batteries are required

Key specifications

• Chemistry: Zinc-Air
• Nominal voltage: 1.45 V
• Battery size: PR44 (commonly labelled 675)
• Height: approximately 5.35 mm
• Diameter: approximately 11.6 mm
• Weight: approximately 1.75 g per cell
• Package count: 6 cells per pack

How to use

Before installation, remove the protective sticker or tab to activate the Zinc-Air cell; the battery becomes active when exposed to air. Insert the cell into the device following the device manufacturer's polarity markings, ensuring correct alignment of the + and - contacts. Replace all batteries at the same time with new cells of the same type. Dispose of used batteries according to local regulations for single-use cells and recycling programs where available.

Recommendations

Store unopened batteries in a cool, dry place and avoid extreme temperatures to preserve shelf life. Once the activation tab is removed, install the battery promptly to avoid loss of capacity. If the device will not be used for an extended period, remove the battery to prevent leakage. Do not attempt to recharge single-use Zinc-Air batteries or expose them to fire.