Button cell battery Energizer Ultimate Lithium CR2016, 3V, pack of 2

Energizer Ultimate Lithium CR2016 is a 3V button cell battery supplied in a pack of 2, designed to provide steady power to small electronic devices. The cell delivers a stable voltage and long shelf life, making it suitable for both low-drain and intermittent-use applications such as watches, calculators, key fobs and other compact electronics. The lithium chemistry offers improved temperature resilience compared with alkaline alternatives and helps maintain reliable operation over extended storage and occasional use.

Advantages

The Energizer Ultimate Lithium CR2016 offers high energy density in a thin, compact form factor, enabling extended operating life for small devices. Its stable 3V output supports consistent device performance, while an extended shelf life reduces the need for frequent replacement. The lithium construction provides better performance over a wider temperature range and lower self-discharge compared with traditional silver oxide or alkaline button cells.

Suitable for

• Wristwatches and wearable timepieces
• Calculators and small handheld devices
• Key fobs, car remotes and security transmitters
• Medical devices such as glucose meters (check device compatibility)
• Backup memory and CMOS systems in compact electronics

Key specifications

• Nominal voltage: 3 V
• Chemistry: Lithium
• Cell type: Button / coin cell
• Diameter: 20 mm (nominal)
• Thickness: 1.6 mm (nominal)
• Pack quantity: 2 cells
• Typical properties: low self-discharge, wide operating temperature range, stable voltage under low-drain conditions

How to use

Before installing, confirm the device requires a CR2016 cell and observe polarity markings on the battery and device. Insert the battery with the correct orientation, typically with the positive (+) side facing up, and ensure the cell seats fully in the battery compartment. Replace both cells at the same time if the device uses multiple batteries and dispose of depleted cells according to local regulations for battery recycling. Store unused cells in a cool, dry place away from metal objects to prevent short circuits.

Usage recommendations

Use Energizer Ultimate Lithium CR2016 in devices specified by the manufacturer for CR2016-size lithium cells. Avoid mixing old and new batteries or different chemistries in the same device. Keep batteries away from children and follow local guidance for handling and recycling.