Lenovo 5b10w51818 Internal Laptop Battery 54.7wh

Product Description

The LENOVO 5b10w51818 is a 4-cell internal lithium-ion replacement battery designed for compatible Lenovo laptop systems. Rated at 54.7 watt-hours, this battery provides the energy capacity needed to restore original runtime performance in systems where the factory battery has degraded or failed. It is an internal-style pack, meaning installation requires opening the laptop chassis. This type of replacement is typically handled by qualified computer repair technicians or experienced end users comfortable with laptop disassembly procedures.

This battery is suited for internal replacement in compatible Lenovo notebook or laptop systems. It is a direct OEM part, sourced through Lenovo parts and accessories, and is intended to restore factory-spec battery performance. The SMP designation identifies the cell manufacturer. Installations of this type are common in enterprise laptop fleet maintenance, warranty depot repair, and out-of-warranty service scenarios.

Key Features

• 4-cell lithium-ion chemistry for stable discharge characteristics
• 54.7 watt-hour capacity restores original manufacturer-specified runtime
• Internal design integrates directly with compatible Lenovo laptop housings
• OEM Lenovo part — manufactured to factory specifications
• SMP cell manufacturer designation

Compatibility

Designed as an OEM-style internal replacement battery for compatible Lenovo laptop and notebook systems. Consult the Lenovo parts database or system documentation to confirm fitment for a specific model before ordering.

Installation Notes

Installation requires full system shutdown and disconnection from AC power before opening the chassis. Follow standard electrostatic discharge precautions throughout the replacement process. A plastic spudger set and appropriate screwdrivers are the typical tools required for laptop battery replacement. Refer to the system-specific service manual for disassembly sequence and connector handling procedures.

Technical Specifications

• Cell Count: 4 cells
• Energy Capacity: 54.7 watt-hours
• Chemistry: Lithium-Ion
• Cell Manufacturer: SMP
• Battery Type: Internal

Standard Information

• Brand: LENOVO
• Manufacturer Part Number: 5b10w51818