Battery Backup Unit Lenovo FRU41Y0679 2200mAh 12V for compatible devices

Battery Backup Unit Lenovo FRU41Y0679 is a 12V, 2200mAh rechargeable battery designed as a replacement or spare power source for compatible Lenovo systems. It supplies short-term backup energy to preserve system settings, maintain CMOS/BIOS memory, and enable orderly shutdown during brief power interruptions. The unit is intended for use in maintenance, repairs, or as a spare part to reduce downtime of portable or rack-mounted equipment that accept this battery form factor.

Advantages

The battery delivers a compact 12V output with 2200mAh capacity, providing reliable short-term power retention for system memory and settings. Its form factor and connector arrangement are compatible with supported Lenovo devices, enabling straightforward replacement without major modifications. The rechargeable chemistry supports repeated charge/discharge cycles common in backup applications, helping to maintain device availability and reduce the risk of data loss during power glitches.

Suitable for

• Replacing a depleted internal backup battery in compatible Lenovo equipment
• Preventing loss of BIOS/CMOS settings during short outages
• Use as a spare unit for maintenance and on-site repairs
• Temporary power retention in portable or rack systems during brief interruptions

Key specifications

• Nominal voltage: 12 V
• Capacity: 2200 mAh
• Battery type: rechargeable backup battery (sealed)
• Typical application: short-term backup for system settings and CMOS/BIOS retention
• Physical form: compact module suitable for internal installation in compatible devices
• Operating role: temporary power supply for graceful shutdown and data preservation

How to use

Power down the host device following the manufacturer’s service instructions and disconnect AC mains before attempting replacement. Remove the existing backup battery or access the battery compartment according to the device’s maintenance manual, then install the replacement unit in the same orientation and connector position. Reconnect power and verify system settings and clock retention. After installation, allow the battery to reach a stable state as indicated by the device diagnostics or monitoring utilities.

Usage recommendations

Store the battery in a cool, dry place and avoid prolonged exposure to high temperatures. Replace the unit if capacity degradation affects system retention time or if physical damage is visible. Dispose of depleted batteries according to local regulations for electronic waste and rechargeable cells.