Button cell battery Philips CR1620 3V Lithium — coin cell for watches, calculators, key fobs

Philips CR1620 is a 3V lithium button cell in a compact coin-cell format designed for small electronic devices. The battery provides a stable nominal voltage of 3 volts and is suitable for applications where a thin, round power source is required. Its lithium chemistry delivers low self-discharge and a long shelf life, making it practical for replacement in devices that demand reliable, long-lasting standby power.

Advantages

The Philips CR1620 delivers consistent voltage output over its service life and offers low self-discharge thanks to lithium construction. Its compact dimensions allow installation in slim housings and small compartments. The cell is light in weight, easy to replace, and compatible with a wide range of consumer electronics that accept the CR1620 form factor. Stable performance at typical operating temperatures ensures predictable behavior in low-drain devices.

Suitable for

• Wristwatches and fitness trackers with CR1620-compatible battery slots
• Small calculators and handheld electronic tools
• Car key fobs, remote controls and keyless entry devices
• Medical monitoring devices and small diagnostic instruments
• Memory backup and real-time clock modules in consumer electronics

Key specifications

• Chemistry: Lithium
• Nominal voltage: 3 V
• Cell type: Button / coin cell
• Typical use: Low-drain and standby applications
• Form factor: Thin circular cell suitable for compact devices

How to use

Before replacing, check the device manual to confirm compatibility with the CR1620 size and 3V specification. Remove the old cell following the device manufacturer’s instructions, taking care to note polarity marking (positive side typically faces up). Insert the new Philips CR1620 into the battery compartment with correct orientation, ensure the contact springs or clip make secure contact, and reassemble the device. Dispose of the removed battery according to local battery recycling regulations.

Usage recommendations

Store unused cells in a cool, dry place away from direct sunlight and heat sources. Avoid short-circuiting the cell or exposing it to fire. Replace batteries in pairs or sets where multiple cells are used to prevent imbalance. For devices used intermittently, remove the battery if long-term storage of the device is planned.