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Dell Latitude E5440 E5540 N5YH9 Y6KM7 VV0NF 9 Cell Laptop Battery
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Dell Latitude E5440 E5540 N5YH9 Y6KM7 VV0NF 9 Cell Laptop Battery

PKR 6,200
The N5YH9 is a high-capacity rechargeable lithium-ion battery designed specifically for the Dell Latitude E5440 and E5540 laptop series. It is commonly available in both standard 6-cell and extended 9-cell configurations.

Warranty

3 Days

1

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Key Specifications

Voltage: 11.1V (compatible with 10.8V) 

Capacity Options:

9-Cell (High Capacity): Typically 97Wh or approximately 8700mAh [1, 2]. Note that 9-cell versions often extend beyond the laptop's body 

6-Cell (Standard): Usually 65Wh or 58Wh (approx. 5200mAh–5800mAh) 

Battery Type: Li-ion 

Compatibility Information

The N5YH9 is interchangeable with several other Dell part numbers, including:

Primary Alternates: VV0NF, VJXMC, 0M7T5F 

Other Part Numbers: 0K8HC, 1N9C0, CXF66, WGCW6, F49WX, and NVWGM 

Recommended Usage Tips

First Use: For a new battery, it is recommended to discharge it to approximately 5% (not 0%) and then charge it to 95% for 3–4 cycles to activate the lithium-ion cells fully 

Long-term Storage: if the battery will not be used for an extended period, charge it to at least 80% every month to maintain health