Green Cell 11.1V 6100mAh battery for Dell Latitude E7440 / E7450

Description

The high-capacity Green Cell replacement battery for Dell Latitude E7440 and E7450 laptops is a professional power solution for IT maintenance workshops and refurbishers. Specially designed to restore maximum autonomy to professional Latitude 7000 series ultrabooks, this removable external battery fits directly into the original slot without requiring complete disassembly of the chassis. It allows you to replace worn power packs showing critical capacity degradation or refusing to charge.

This model is assembled with high-density Lithium-Ion cells selected for their thermal stability and resistance to repeated charge cycles. Delivering a nominal voltage of 11.1 Volts for a high capacity of 6100 mAh (approximately 68 Wh), it offers a significant gain in autonomy compared to standard 34Wh or 47Wh batteries. The onboard electronics incorporate a BMS (Battery Management System) controller fully compatible with the Dell motherboard communication protocol, ensuring immediate recognition by the BIOS/UEFI and accurate display of the charge percentage in the operating system. The circuit is equipped with hardware protections against overcharging, deep discharge, overvoltage, and short circuits.

The fireproof ABS external casing is moulded to original Dell dimensions to ensure perfect mechanical locking via the chassis latches. Due to its extended 6100 mAh capacity, the physical format uses the maximum volume available to integrate the additional cells while maintaining excellent structural rigidity to withstand the stresses of professional mobile use.

Technical specifications

• Manufacturer reference: Compatible Dell 3RNFD / 34G17 / F33WY / G019Y / 451-BBFT (Manufactured by Green Cell)
• Technology / Material: Lithium-Ion (Li-Ion) / Reinforced ABS polymer casing
• Compatibility: Dell Latitude E7440, Dell Latitude E7450
• Dimensions: Specific to the Dell Latitude E7440/E7450 removable battery slot
• Power / Standards: Nominal voltage 11.1V (10.8V compatible) | Capacity 6100mAh (~68Wh)
• Connectivity: Recessed pin connector for original chassis connector

Workshop Advice & Usage

When the equipment is received by the customer or technician, check the condition of the battery's gold connectors before insertion. Ensure that the laptop is completely switched off and disconnected from its mains power supply during replacement. Slide the battery into its slot until the locking latches click firmly to avoid any poor contact during operation. To optimise the lifespan of the Li-Ion cells and calibrate the battery gauge, perform an initial full cycle: charge the device to 100%, leave it plugged into the mains for an additional hour, then use the computer on battery until the critical alert threshold (approximately 5 to 10%) before performing an uninterrupted recharge.