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Laptop 6 Cell Dell Latitude E5400 E5410 E5500 E5510 Series PN: KM769 RM656 T749D 451-10616 KM742
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Laptop 6 Cell Dell Latitude E5400 E5410 E5500 E5510 Series PN: KM769 RM656 T749D 451-10616 KM742

PKR 2,500
The KM742 is a 6-cell Lithium-Ion replacement battery designed for several older Dell Latitude models, including the E5400, E5410, E5500, and E5510. It is a direct OEM-compatible solution that typically offers between 4400mAh and 5200mAh of capacity

Warranty

3 Days

1

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Key Specifications

Battery Type: Lithium-Ion (Li-ion) 

Voltage: 11.1V (fully compatible with 10.8V systems) 

Cell Count: Usually 6-Cell, though 9-cell variants (like part WU841) are sometimes listed as high-capacity alternatives for the same models 

Standard Capacity: 4400mAh / 49Wh to 5200mAh / 58Wh 

Expected Runtime: Typically 2–3 hours on a single charge, depending on laptop usage 

Compatibility

The KM742 battery is compatible with the following laptop series:

Dell Latitude E5400 / E5400N 

Dell Latitude E5410

Dell Latitude E5500 / E5500N

Dell Latitude E5510 

Alternative Part Numbers

This battery is often interchangeable with these Dell part numbers:

KM769, RM656, RM661, T749D, 451-10616 

MT186, MT187, WU841, WU843, PW640