Lenovo 3-cels 57Wh 11,52V Li-Ion laptopaccu (5B11K63029)

With a 57 Wh capacity and 11.52 V output, this 3-cell lithium-ion battery delivers reliable power for compatible Lenovo ThinkPad laptops.

Overview

The Lenovo 5B11K63029 is an internal laptop battery engineered for select ThinkPad models. It uses lithium-ion chemistry and provides a capacity of 4948 mAh, ensuring consistent performance for daily computing tasks.

What stands out

• 57 Wh capacity for extended runtime
• 3-cell lithium-ion design
• 11.52 V output
• Compatible with ThinkPad P1 Gen 4, X1 Extreme Gen 4, and X1 Extreme Gen 5
• Rechargeable
• Black colour

Technical details

• Battery type: Lithium-Ion (Li-ion)
• Number of cells: 3
• Capacity: 57 Wh
• Voltage: 11.52 V
• Capacity (mAh): 4948 mAh
• Product type: Laptop internal battery
• Brand compatibility: Lenovo
• Rechargeable: Yes
• Condition: New
• Colour: Black
• Manufacturer part number: 5B11K63029

Our verdict

A dependable replacement battery that matches the original specifications for supported ThinkPad systems.