JIAZIJIA Dell Latitude 51Wh 11.4V Laptop Battery

JIAZIJIA 7WNW1 is a 51Wh, 11.4V plug-and-play Li-ion replacement battery designed to restore run time for compatible Dell Latitude Rugged notebooks.

If your Dell Latitude 7424, 5424, or 5420 Rugged Extreme shows short battery life or won’t hold charge, this JIAZIJIA 7WNW1 battery offers a direct OEM-compatible swap. It matches the original form factor and electrical specs—11.4 volts and 51Wh (4342mAh)—so installation is straightforward for users who follow the service manual. The pack ships in black, is labeled with compatible part numbers (DMF8C, 0DMF8C, 0GK3D3, GK3D3, 1Y62C, 451-BCHS, DMF0C, DP3KF), and fits the P85G/P86G series models listed by Dell.

How will this replacement battery affect my laptop’s run time?

Replacing a degraded or dead battery with the JIAZIJIA 7WNW1 returns your machine to the original rated capacity: 51Wh (4342mAh). Real-world runtime depends on screen brightness, CPU load, and attached peripherals, but restoring rated capacity reliably increases usable hours compared with worn internal cells.

• Rated capacity: 51Wh / 4342mAh at 11.4V.
• Plug-and-play design reduces setup steps—no special calibration required for most users.
• Matches original battery footprint for a secure fit in Dell Latitude Rugged bays.

Will this battery fit my Dell model and how do I verify compatibility?

The JIAZIJIA 7WNW1 is built to replace the specific Dell part numbers noted above and fits Latitude 7424, 5424, and 5420 Rugged Extreme variants within the P85G/P86G product families. Before ordering, open your laptop’s rear access panel and compare the stickered part number on the installed battery to the replacement list.

• Check for OEM numbers: 7WNW1, DMF8C, 0DMF8C, 0GK3D3, GK3D3, 1Y62C, 451-BCHS, DMF0C, or DP3KF.
• Confirm physical shape and connector location match your battery bay.
• Refer to your service manual for safe removal and installation steps.

How easy is it to install and what precautions should I take?

Installation is straightforward for anyone comfortable opening a laptop back panel and handling internal components. Always power down the machine, remove external power, and ground yourself to avoid electrostatic discharge. Follow any included instructions and the Dell service guide to avoid damage to connectors or chassis seals.

• Power off and unplug the laptop before starting.
• Use a screwdriver to remove the rear case and gently lift the battery out of its compartment.
• Connect the replacement pack securely and replace screws and seals to maintain rugged integrity.

What safety and performance details should I know?

This JIAZIJIA pack is a lithium-ion battery matched to the original electrical specs to maintain stable operation with the laptop’s power management. Do not attempt to disassemble the pack, and avoid exposure to high heat, puncture, or water to reduce risk. Dispose of the old battery according to local electronic waste regulations.

• Chemistry: Li-ion, non-serviceable cells sealed inside the pack.
• Voltage: 11.4V — designed to work with Dell’s original charging circuitry.
• Follow local recycling rules for used battery disposal.

Who is this for? The JIAZIJIA 7WNW1 replacement battery is intended for field technicians, IT teams, and individual users of Dell Latitude Rugged laptops who need a reliable, OEM-style battery swap. It’s ideal when your original battery no longer holds sufficient charge, when you maintain fleet uptime for on-site work, or when you simply want to restore factory runtime without replacing the whole notebook. Always verify the part number on your original battery and follow the manufacturer’s installation guidelines for best results.