Coin cell battery Lenovo CR2016 3V lithium — button cell for watches, remotes, calculators

Lenovo CR2016 is a 3V lithium coin cell battery engineered for compact, low-drain electronics such as watches, calculators, key fobs, remote controls and motherboards that require CMOS/RTC backup. The single-cell button design provides a stable voltage output and a compact form factor that fits standard CR2016 holders. Its chemistry and construction offer long shelf life and dependable power for devices with intermittent or low continuous current draw.

Advantages

The CR2016 delivers consistent 3V output throughout the typical discharge curve for coin cells, ensuring predictable device behaviour. Its small diameter and thin profile make it suitable for space-constrained battery compartments. The lithium chemistry provides extended storage life and low self-discharge, while the sealed metal can construction resists leakage and helps maintain reliable contact in button-cell holders. Installation and replacement are straightforward due to the common button-cell format.

Suitable for

• Wristwatches and small timekeeping devices
• Calculators and basic handheld electronics
• Key fobs, car remotes and garage door transmitters
• Motherboard CMOS/RTC backup batteries
• Small LED indicators, toys and measurement tools with low power draw

Key specifications

• Nominal voltage: 3 V
• Chemistry: lithium manganese dioxide (typical for CR-type coin cells)
• Form factor: coin/button cell, standard CR2016 dimensions
• Typical use: low-drain and intermittent-load devices
• Storage characteristics: long shelf life with low self-discharge

How to use

Before installation, confirm the device specifies a CR2016-sized cell and that polarity orientation matches the holder markings. Remove the old battery following device-specific instructions to avoid damage to contacts or seals. Insert the new Lenovo CR2016 so the positive (+) side faces the indicated direction, ensuring a secure fit in the spring or pressure contacts. After replacement, check device operation and reset any time or configuration settings if necessary.

Usage recommendations

Store unused cells in a cool, dry place away from metallic objects to prevent shorting. Dispose of depleted batteries according to local regulations for lithium cells. Do not attempt to recharge, puncture, or expose the battery to fire or high temperatures. Keep out of reach of children and seek immediate medical attention if swallowed.