Dell 15.2V 63Wh 3941mAh RJ40G Battery Compatible with Dell Latitude 5420 5520 075X16 WY9DX Series

Dell 15.2V 63Wh 3941mAh RJ40G Battery for Latitude 5420, 5520, 075X16, WY9DX Series

Product Overview

The RJ40G 63Wh replacement battery is designed for Dell Latitude 5420, 5520, and compatible models, offering long-lasting performance and a seamless fit with your device. This 15.2V, 3941mAh, 63Wh Lithium-Ion (Li-ion) battery ensures reliable power for your Latitude laptop, providing extended hours of work, school, or personal use without interruption.

This replacement battery is fully compatible with Dell 075X16, WY9DX, and meets or exceeds OEM specifications to offer optimal reliability and safety.

Key Features

✅ 63Wh High-Capacity Battery – Delivers extended runtime, reducing the need for frequent charging.
✅ Direct Compatibility with Dell Latitude 5420, 5520 Series – Perfect replacement for RJ40G, 075X16, WY9DX.
✅ Premium Lithium-Ion Cells – Ensures stable, efficient, and long-lasting power.
✅ Certified Safety Protections – Built-in overcharge, overheat, and short-circuit protections for safe operation.
✅ Lightweight and Portable – Ideal for mobile professionals and students.
✅ Easy Installation – Plug-and-play for easy, tool-free replacement.

Technical Specifications

• Model Number: RJ40G (Compatible with 075X16, WY9DX)
• Battery Type: Lithium-Ion (Li-ion)
• Voltage: 15.2V
• Capacity: 63Wh / 3941mAh
• Cells: 6-cell configuration
• Condition: Brand New / High-Quality Replacement
• Color: Black

Compatible Dell Latitude Models

This RJ40G replacement battery is compatible with the following Dell Latitude models:

✅ Latitude 5420 Series
✅ Latitude 5520 Series

⚠ Note: Verify your current battery model number to ensure compatibility before purchasing.

What’s in the Box?

✔ 1 x RJ40G Replacement Battery
✔ User Guide / Installation Instructions (if applicable)

Battery Maintenance Tips

🔋 Charge before reaching 10-15% to extend the battery lifespan.
🔋 Use a genuine Dell charger for safe and efficient charging.
🔋 Unplug when fully charged to avoid overcharging and optimize battery health.
🔋 Store at 50% charge in a cool, dry place if not in use for a long time.

Why Choose This Battery?

✅ Extended Battery Life – 63Wh capacity ensures long-lasting performance for a full day of use.
✅ Perfect Compatibility with Dell Latitude 5420, 5520 Series – Ensures easy, seamless replacement for RJ40G, 075X16, WY9DX.
✅ Safety & Reliability – Built-in overcharge and short-circuit protection to ensure safe usage.
✅ Cost-Effective – Provides OEM-like performance at an affordable price.

The RJ40G 63Wh Battery is a high-quality replacement for your Dell Latitude 5420, 5520 Series laptop, offering long-lasting power, reliability, and easy installation. Whether for business, education, or personal use, this battery provides uninterrupted power to keep you productive and on-the-go