Extra Digital Advanced 8200mAh 11.4V 9-Cell Li-Ion Replacement Laptop Battery for Dell GJKNX – Latitude 5400 5410 5500 5510 Precision 3540 3550 (NB442249)

With a massive 93.48Wh energy reserve, this Extra Digital Advanced battery delivers up to 500 charge cycles of dependable power for your Dell Latitude or Precision laptop. Engineered as a direct replacement for Dell part GJKNX, it matches OEM specifications while offering premium lithium-ion cells and six independent safety protections.

Overview

The NB442249 is a high-quality replacement battery designed to meet or exceed original Dell specifications. It uses premium lithium-ion cells to provide reliable, long-lasting power for compatible Dell Latitude 5400, 5410, 5500, 5510, and Precision 3540, 3550 notebooks. With a rated capacity of 8200mAh and 11.4V output, it delivers the same performance as the original battery, ensuring your laptop runs at full potential throughout the day.

Built-in protection circuits guard against overcharging, over-discharging, over-current, and short circuits, ensuring safe and dependable operation. The battery is CE, RoHS, and FCC certified, and has undergone rigorous testing to ensure full compatibility and reliability.

What stands out

• Exact compatibility with Dell Latitude 5400, 5410, 5500, 5510 and Precision 3540, 3550 – direct replacement for Dell part GJKNX.
• High 8200mAh capacity (93.48Wh) for extended runtime.
• Six independent protection features for maximum safety.
• CE, RoHS, and FCC certified.
• Rigorous testing to ensure full compatibility and reliability.

Technical details

• Product Type: Laptop Battery
• Battery Chemistry: Lithium-ion (Li-ion)
• Battery Capacity: 8200mAh
• Energy Capacity: 93.48Wh
• Voltage: 11.4V
• Number of Cells: 9
• Compatible Dell Part Number: GJKNX
• Colour: Black
• Cycle Life: 500+ cycles
• Operating Temperature: 0°C to 45°C
• Storage Temperature: -20°C to 60°C

Our verdict

If you need a dependable, high-capacity battery for your Dell business laptop, the Extra Digital Advanced NB442249 is a smart choice. It is built with safety and longevity in mind, offering the same performance as the original at a fraction of the cost.