Lenovo Battery Internal 4-Cell 86Wh (5B11M90039)

For professionals who rely on their Lenovo ThinkPad P1 or X1 Extreme for demanding workloads, this internal 4-cell battery provides 86Wh capacity to keep you productive through long meetings, design sessions, or travel. It is a direct replacement for the original battery, ensuring seamless compatibility and reliable performance.

Key specifications

• Battery technology: Lithium-Ion (Li-Ion)
• Capacity: 86 Wh
• Number of cells: 4
• Voltage: 15.36 V
• Current capacity: 5600 mAh
• Colour: Black
• Compatible with: Lenovo ThinkPad P1 Gen 4, Gen 5, Gen 6; Lenovo ThinkPad X1 Extreme Gen 4, Gen 5, Gen 6

Why choose it

Engineered to meet original specifications, this battery restores your laptop's runtime and reliability. Its 86Wh capacity balances weight and endurance, making it suitable for users who need dependable power without frequent recharging.

Ideal use cases

• Replacing a worn-out or failing battery in a compatible ThinkPad P1 or X1 Extreme.
• Extending mobile productivity for professionals in engineering, design, or content creation.
• Ensuring consistent power for presentations, fieldwork, or long flights.

Good to know

The battery is internal and rechargeable, designed for straightforward installation by a technician. It is a genuine Lenovo part, identified by MPN 5B11M90039.