Lenovo 5b11n45439 Laptop Battery 4-cell 80wh 15.44V

Product Description

The LENOVO 5b11n45439 is a 4-cell lithium-ion laptop battery rated at 80 watt-hours (Wh) and 15.44 volts. It is an OEM-specification replacement power cell designed for compatible Lenovo notebook systems. This battery supplies sustained runtime power to the host laptop, maintaining charge cycles consistent with the original factory unit. Technicians and IT service professionals install this part during battery replacement service when the original cell has degraded below acceptable charge-retention thresholds. The L22X4PC0 internal designation confirms OEM-level compatibility for supported configurations.

This battery is intended for use in Lenovo laptop systems that accept the L22X4PC0 battery series. It is suited for corporate IT depot repairs, authorized service center replacements, and professional device refurbishment. The 80 Wh capacity supports full-day usage workloads typical of business-class notebook platforms. Install scenarios include end-of-life battery swap-outs and refurbishment builds requiring a fresh power cell.

Key Features

• 4-cell lithium-ion construction delivering 80 Wh of capacity
• Rated at 15.44 volts for compatibility with supported Lenovo notebook charging circuits
• OEM part number L22X4PC0 designation ensures proper fitment for supported systems
• Designed as a direct replacement for original factory-installed battery units
• Suitable for depot-level repair, refurbishment, and authorized service center use

Compatibility

Designed as an OEM-style replacement battery for Lenovo laptop systems compatible with the L22X4PC0 battery series designation.

Installation Notes

Battery replacement should be performed by a qualified technician familiar with laptop disassembly procedures. Power down the device completely and disconnect all external power sources before beginning service. Follow applicable electrostatic discharge (ESD) precautions to protect sensitive internal components. Do not attempt to modify, puncture, or force the battery connector during installation.

Technical Specifications

• Cell Count: 4-cell
• Capacity: 80 Wh
• Voltage: 15.44 volts
• Internal Model Designation: L22X4PC0

Standard Information

• Brand: LENOVO
• Manufacturer Part Number: 5b11n45439