Duracell CR1616 Lithium Coin Cell Battery 3V Single Pack

The Duracell CR1616 is a 3V lithium coin cell battery measuring 16mm diameter by 1.6mm thick, supplied as a single cell in child-resistant blister packaging. The lithium manganese dioxide chemistry delivers stable voltage output across the cell's operating life, making it suitable for devices that draw intermittent low current rather than continuous high drain.

Designed for car key fobs, remote controls, digital watches, fitness trackers, glucometers and small medical devices, the CR1616 provides a typical capacity of 50-60mAh depending on load profile. The 1.6mm thickness makes it one of the thinner coin cells in the 16mm diameter family, fitting devices where internal space is limited. The lithium chemistry operates across a temperature range of -20°C to +60°C, maintaining output in cold vehicle interiors and outdoor wearables.

The child-resistant blister pack meets ISO 8317 standards, requiring coordinated pressing and twisting to open the pack. Duracell applies a 'Baby Secure' coating to the cell itself, adding a bitter-tasting layer that discourages ingestion if a child accesses the battery. Shelf life is approximately 10 years from manufacture when stored at room temperature, allowing the battery to be kept as a spare without significant self-discharge.

What devices typically use a CR1616?

The CR1616 is commonly found in car key fobs, particularly those with proximity unlock functions, digital watches, fitness trackers, glucometers and small remote controls. The thin 1.6mm profile suits devices with tight internal clearances where a thicker CR2032 or CR2025 will not fit.

How long does a CR1616 last?

Battery life depends on device current draw. In a car key fob used 10-15 times daily, a CR1616 typically lasts 12-24 months. In a watch with basic timekeeping function it may last 2-3 years. Devices with backlit displays or frequent wireless transmission drain the cell faster.

Can I use a CR1616 in place of a CR1620?

No. The CR1616 is 1.6mm thick, while the CR1620 is 2.0mm thick. A CR1616 fitted into a CR1620 compartment may not make proper contact with the terminals, causing intermittent operation or no power. Always match the exact cell size specified by the device manufacturer.

What does the 'Baby Secure' packaging mean?

The blister pack is designed to be difficult for children under 5 to open, requiring coordinated pressing and twisting. The battery itself also carries a bitter coating to discourage swallowing if accessed. Coin cells are a choking and chemical hazard, so the pack should be kept out of children's reach and disposed of responsibly.