Dell 7WNW1 51Wh Battery Replacement | Compatible with Latitude 5424/7424 Models

Dell 7WNW1 51Wh Replacement Battery

Find the perfect replacement battery for your Dell Latitude laptop with our comprehensive compatibility guide and expert advice.

Dell 7WNW1 51Wh Battery

Battery models & part numbers

Reference / P/N
07WNW1
6NNCF
7WNW1
Dell-7WNW1-51Wh
DMF0C
DP3KF
P85G
P85G001
P86G
P86G001

Compatible laptop models

Model
Dell Latitude 5424
Dell Latitude 7424

Introduction

This high-quality 51Wh replacement battery is designed specifically for Dell Latitude business laptops, providing reliable power and extended usage time for professionals across Australia and New Zealand.

Common signs you need a replacement

Symptoms Causes Verification Recommendation
Battery drains quickly Ageing cells, reduced capacity Check battery health in system settings Replace if capacity below 60%
Laptop won’t hold charge Failed battery circuitry Test with power adapter removed Immediate replacement needed
Battery swelling Internal gas buildup Visual inspection, case separation Replace immediately for safety
Overheating during use Internal resistance increase Monitor temperature, check vents Replace to prevent damage

How to check compatibility

Verify your laptop model matches our compatibility list above. Check your current battery’s part number (usually printed on the battery) against our reference numbers. For Dell Latitude 5424 and 7424 models, this battery is a direct replacement.

When to replace

Replace your battery when you notice significant runtime reduction, the battery won’t hold charge, or physical swelling occurs. Most laptop batteries last 2-3 years with regular use before needing replacement.

Installation guide (overview)

Power off your laptop and disconnect the AC adapter. Remove the bottom panel (consult your laptop’s service manual). Disconnect the battery connector and remove any securing screws. Install the new battery, reconnect the connector, and reassemble. Charge fully before first use.

Usage & care tips

Avoid extreme temperatures (ideal range 15-25°C). Don’t leave your laptop plugged in constantly – occasional discharge cycles help maintain battery health. Store in a cool, dry place if not used for extended periods.

Safety & recycling in AU/NZ

Never attempt to open or modify the battery. Dispose of old batteries at authorised recycling centres – never in household waste. In Australia, check with your local council for battery recycling options. In New Zealand, use designated battery recycling facilities.

FAQ

How long does this battery last?
Typically 2-3 years with normal use, providing several hours of runtime depending on usage.

Is this an original Dell battery?
This is a high-quality compatible replacement meeting or exceeding original specifications.

Does it come with a warranty?
Yes, check the product page for current warranty details and terms.

How do I check my current battery health?
In Windows, type “battery report” in the search bar or check power settings for battery health information.

Can I use this battery internationally?
Yes, laptop batteries are universal and work with any power supply that matches your laptop’s requirements.

How long does shipping take in AU/NZ?
Typically 3-7 business days within Australia and New Zealand, depending on your location.

What if it doesn’t fit my laptop?
Double-check your laptop model and battery part number against our compatibility list. Contact customer support if issues persist.

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