The Dell WY9DX Laptop Battery is a premium 3-cell 42Wh replacement battery compatible with Dell Latitude 5420 and Dell Latitude 5520 laptops. Featuring an 11.4V output and high-quality lithium-ion cells, it delivers reliable power, efficient battery runtime, and optimized energy management for business, professional, and everyday computing. Advanced safety circuitry protects against overcharging, overheating, over-current, and short circuits, ensuring safe and dependable operation. Designed to meet OEM specifications, the WY9DX replacement battery restores your Dell Latitude laptop’s battery life, portability, and overall performance, making it the ideal replacement for old or defective batteries.
Features
- Premium lithium-ion cells for reliable and long-lasting performance.
- 42Wh battery provides dependable runtime for everyday business and office use.
- Built-in protection against overcharging, overheating, over-current, and short circuits.
- Stable power delivery for office work, online meetings, remote learning, and daily computing.
- Direct-fit replacement engineered to meet or exceed original Dell OEM specifications.
- Supports hundreds of charge cycles for dependable long-term performance.
- Easy installation with a precise fit for compatible Dell Latitude laptops.
Key Specifications
- Battery Model: WY9DX
- Battery Type: Lithium-Ion (Li-Ion)
- Cells: 3-Cell
- Voltage: 11.4V
- Capacity: 42Wh
- Color: Black
- Condition: Brand New Replacement Battery
- Rechargeable: Yes
Compatible Laptop Models
- Dell Latitude 5420
- Dell Latitude 5520
Compatible Part Numbers
- WY9DX
- 0WY9DX
- C8CGK
- 0C8CGK
- 2X39G
- 02X39G
- 4GVGH
- 04GVGH
- 451-BDCL
- 451-BDCM
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