Real-time clock battery Lenovo CR2016 FRU01AY996 — coin cell for motherboard RTC backup

Lenovo CR2016 FRU01AY996 is a coin cell real-time clock (RTC) battery intended to maintain motherboard timekeeping and BIOS settings when main power is removed. This CR2016-format lithium cell delivers low-drain, long-life backup power for laptops, embedded systems and other electronics that use a CR2016 battery for RTC backup. The battery is supplied as a single coin cell compatible with standard CR2016 battery holders on PCBs and motherboards.

Advantages

The CR2016 cell provides stable nominal voltage suitable for RTC circuits and low self-discharge for prolonged shelf life and in-place service life. Its compact coin form factor fits common motherboard battery holders and offers a predictable replacement option for devices originally designed for CR2016. The cell is supplied by Lenovo to match form, fit and electrical expectations for compatible devices.

Suitable for

• Motherboard RTC and BIOS clock backup in laptops and desktops that accept CR2016
• Replacement in small electronics and embedded devices with CR2016 battery holders
• Repair and maintenance tasks where low-drain, long-life backup is required

Key specifications

• Cell type: lithium coin cell (CR2016 form factor)
• Nominal voltage: 3V
• Typical use: low-drain RTC and memory backup circuits
• Form factor: round, 20 mm diameter, 1.6 mm thickness
• Storage characteristics: low self-discharge for extended shelf life

How to use

Power down the device and disconnect mains or battery power before replacing the RTC battery. Locate the CR2016 holder on the motherboard, note the polarity orientation of the installed cell, and gently remove the old cell from the holder. Insert the new CR2016 cell with the same polarity orientation, ensuring it is seated correctly in the holder. Reconnect power and verify BIOS/RTC settings; reset time and date if required. Dispose of the removed battery following local regulations for lithium coin cells.

Recommendations

Store unused batteries in a cool, dry place away from metal objects. Avoid shorting the cell terminals and do not recharge or disassemble. For reliable RTC backup, replace the battery when device timekeeping becomes unreliable or during scheduled maintenance intervals.