Philips CR1220/00B lithium coin cell battery, 3V, compact button cell for watches and electronics

Philips CR1220/00B is a 3V lithium coin cell designed as a compact button cell for small electronic devices. The battery provides a thin form factor and stable nominal voltage suitable for devices that require a long-lasting 3V power source. It is intended as a single-cell replacement for equipment that specifies the CR1220 size and voltage, offering reliable operation for timekeeping, low-drain electronics and memory backup applications.

Advantages

This Philips lithium coin cell delivers a stable 3V output and long shelf life in a compact, low-profile design. The chemistry offers consistent voltage over the discharge period and a low self-discharge rate, which helps preserve capacity during storage and intermittent use. Its compact diameter and thin profile make it compatible with slim watch cases, small calculators, key fobs and other devices where space is limited.

Suitable for

• Wristwatches and small clocks
• Calculators and handheld measuring tools
• Key fobs and car remote controls
• Small medical devices and hearing aids (if specified)
• Real-time clock modules and memory backup in electronics

Key specifications

• Chemistry: lithium manganese dioxide (Li‑MnO2) style cell
• Nominal voltage: 3 V
• Form factor: coin/button cell, thin profile suitable for compact devices
• Typical use: low-drain and standby power applications
• Storage characteristics: low self-discharge for extended shelf life

How to use

Install the battery in the device following the manufacturer’s polarity markings and safe handling instructions. Ensure the device specification lists CR1220 (3V) compatibility before replacement. When inserting the cell, place it into the battery compartment with the correct orientation and secure any covers or clips. Dispose of depleted batteries according to local regulations for lithium cells.

Usage recommendations

Store unused cells in a cool, dry place away from direct heat and sunlight. Avoid short-circuiting the terminals and do not attempt to recharge, disassemble or expose the cell to fire. Replace batteries in matched sets where applicable and check device contacts for corrosion before installation.