Lenovo CMOS/RTC-paristo 3V CR2032 1-kennoinen 2-pin (5B11Q26225)

When a laptop loses date and time settings or fails to boot due to CMOS checksum errors, the culprit is often a depleted CMOS/RTC battery. This Lenovo CMOS battery (5B11Q26225) restores reliable BIOS settings retention and real-time clock functionality in compatible Lenovo laptops and motherboards.

Who is it for

IT technicians, system integrators, and repair shops servicing Lenovo hardware. It is also suitable for advanced users replacing the CMOS battery in their own Lenovo laptop or motherboard.

Main features

• Lithium manganese dioxide (LiMnO2) coin cell, CR2032 size
• 3V nominal voltage, 210 mAh capacity
• Single cell with 2-pin connector
• Non-rechargeable, long shelf life
• Operating temperature range: -20°C to 70°C

Specifications

• Product type: CMOS/RTC battery
• Battery chemistry: Lithium manganese dioxide (LiMnO2)
• Cell size: CR2032
• Voltage: 3V
• Number of cells: 1
• Nominal capacity: 210 mAh
• Connector type: 2-pin
• Diameter: 20 mm
• Thickness: 3.2 mm
• Rechargeable: No

Tips

Before replacing the CMOS battery, disconnect the laptop from power and remove the main battery if possible. Handle the battery by its edges to avoid shorting. After installation, enter BIOS setup to reconfigure date, time, and any custom settings.