CR1632

The CR1632 is a slim, round, lithium coin cell battery that delivers a nominal voltage of 3 volts. It is part of the CR1xx series manufactured by myriad battery producers, including Panasonic, Sony, and Anker, and its dimensions are 16 millimeters in diameter and 3.2 millimeters in height. Because of its small form factor, the CR1632 is commonly found in compact electronic devices that require high energy densities in tight spaces. Typical applications include medical devices such as hearing aid batteries, watches, GPS receivers, and some wearable fitness monitors, as well as consumer electronics like tennis racquet straps, museum exhibit lights, and keyless remote controls.

The battery’s chemistry is a lithium-manganese dioxide (Li/MnO₂) cell, which provides a stable voltage output over a wide temperature range and low self‑discharge rate. The replacement cycle for a CR1632 depends on the device’s power consumption; a fully charged cell generally lasts from several months to over a year in low‑draw devices, and only a few weeks in higher‑drain applications. The CR1632 is designed for single‑use applications and should not be recharged. Users are advised to follow proper disposal guidelines for lithium coin cells, as they contain hazardous materials and can cause fire if punctured or mishandled.

When selecting a replacement CR1632, ensure it matches the device’s specified voltage, capacity, and size. Authenticity can often be confirmed by the manufacturer’s logo and the battery’s end-of-life indicators, such as a small white or slightly sticky spot at the top. Because of the battery’s commonality in many small gadgets, most electronics retailers and online marketplaces carry a wide range of suppliers.