Lenovo ThinkPad X1 Carbon 4th Gen 00HW028 00HW029 01AV409 50Wh 100% Original Laptop Battery

The Lenovo 00HW028 / 01AV409 Laptop Battery is a premium 4-cell 52Wh internal replacement battery compatible with the 14-inch Lenovo ThinkPad X1 Carbon 4th Generation (Types 20FB, 20FC). Featuring a high-voltage 15.2V architecture and high-density lithium-polymer cells, it provides reliable power, longer battery runtime, and efficient energy management for professional enterprise work, remote workflows, and everyday tasks. Advanced integrated safety circuitry protects your premium ultrabook from overcharging, overheating, over-current, and short circuits, ensuring secure performance. Designed to match precise OEM physical configurations and dimensions, this replacement battery seamlessly restores your X1 Carbon’s premium battery life, thin form factor, and true mobile portability, making it the perfect upgrade for a degraded or failing internal battery block.

Features

• Premium lithium-polymer cells for reliable, ultra-slim, and long-lasting performance.

• 52Wh/50Wh capacity matches original factory standards to ensure a true mobile workday workflow.

• Built-in safety protection against overcharging, overheating, over-current, and short circuits.

• Stable, low-profile voltage delivery engineered precisely for the X1 Carbon’s thin internal layout.

• Direct-fit replacement engineered to meet or exceed original Lenovo OEM specifications.

• Supports hundreds of charge cycles for dependable long-term performance.

• Includes exact mounting screw hole layouts and premium internal connector cables for a clean installation.

Key Specifications

• Battery Model: 00HW028 / 01AV409

• Battery Type: Lithium-Polymer (Li-Polymer)

• Cells: 4-Cell

• Voltage: 15.2V

• Capacity: 52Wh / 50Wh (3290mAh – 3425mAh)

• Color: Black

• Condition: Brand New Replacement Battery

• Rechargeable: Yes

Compatible Laptop Models

• Lenovo ThinkPad X1 Carbon 4th Gen Series (2016 Release)

• Machine Types: 20FB, 20FC (e.g., 20FB002MCD)

• ⚠️ Important Compatibility Note: This battery is designed exclusively for the X1 Carbon Gen 4 (2016). It will not fit the X1 Carbon Gen 1, Gen 2, Gen 3, Gen 5 (2017), or any later generations. Please verify your laptop’s Machine Type (20FB/20FC) before purchasing.

Compatible Part Numbers / Cell Strings

• 00HW028

• 00HW029

• 01AV409

• 01AV410

• 01AV438

• SB10F46466

• SB10F46467

• SB10K97566

• SB10K97567

• 4ICP4/48/123