LR44 / AG13 1.5V Alkaline Button Cell Battery | Pro Tronix

Product Description

The LR44 (commonly cross-referenced as AG13, 357, or A76) is a highly versatile, heavy-duty alkaline button cell battery engineered to deliver stable 1.5V power to an extensive array of low-to-medium drain electronics. Featuring an optimized high energy density and a 145mAh capacity, this non-rechargeable battery provides long-lasting voltage stability and protects delicate circuitry from sudden drops. It is built with an advanced leak-resistant casing to ensure an extended shelf life and maintain physical integrity over prolonged use. For technicians, calibration specialists, and hardware developers, it stands as the absolute go-to power standard for precision measurement tools and everyday electronic hardware.

Pinout / Layout Connections

The compact physical package functions directly as its electrical contact terminals:

• Top Face & Wide Outer Casing (+): The flat, wider top surface stamped with model specifications acts as the positive terminal.

• Bottom Circular Face (-): The slightly raised, isolated circular surface on the lower side serves as the negative terminal.

• Insulation Grommet: A miniature plastic isolation ring seals and separates the positive casing from the negative base to prevent accidental short-circuits during storage or installation.

Applications

• Test & Measurement: Digital calipers, micrometers, pocket multimeters, and electronic thermometers.

• Office & Educational: Handheld calculators, digital laser pointers, and compact desk timers.

• Consumer Gadgets: LED keychain lights, children’s interactive toys, and small handheld gaming devices.

• Medical Devices: Digital glucose monitors, pulse oximeters, and compact clinical instruments.

• Security Gear: Wireless window/door alarm sensors and small entry remotes.

Technical Specifications