Lapgrade M5Y1K 14.8V 40Wh 4-Cell Replacement Battery for Dell Inspiron 3458 3551 5558 5758 Vostro 3458 3558

The Lapgrade M5Y1K 14.8V 40Wh 4-Cell Replacement Battery is a high-quality lithium-ion power source designed specifically for Dell Inspiron and Vostro laptop series. Engineered to meet or exceed original equipment manufacturer (OEM) specifications, this replacement battery for Dell Inspiron 3458, 3551, 5558, 5758 and Vostro 3458, 3558 delivers reliable, long-lasting performance to keep your laptop running throughout your workday. With precise voltage matching of 14.8V and 40Wh capacity, this 4-cell battery provides the perfect balance of power and portability for your Dell laptop .

Explore the complete range of Lapgrade replacement batteries and laptop accessories at our dedicated Lapgrade battery collection. Every unit is sourced from authorised channels and carries manufacturer-verified specifications.

M5Y1K Battery Overview – Premium Replacement for Dell Laptops

The Lapgrade M5Y1K replacement battery is engineered to restore your laptop’s original runtime and performance. Whether your original battery has worn out after hundreds of charge cycles or you simply need a spare for extended work sessions, this high-capacity lithium-ion battery delivers consistent, reliable power. Key features include:

• Precise Compatibility: Designed specifically for Dell Inspiron 14 3000 series (3451, 3452, 3458, 3459), Inspiron 15 3000 series (3551, 3552, 3558, 3559, 3567), Inspiron 15 5000 series (5551, 5555, 5558, 5559), Inspiron 17 5000 series (5755, 5758, 5759), and Vostro 3458, 3459, 3558, 3559 models
• OEM-Grade Specifications: 14.8V voltage, 40Wh (2600mAh) capacity, and 4-cell configuration ensure seamless integration with your Dell laptop
• Multiple Compatible Part Numbers: Replaces original Dell battery part numbers including M5Y1K, GXVJ3, HD4J0, K185W, VN3N0, WKRJ2, 451-BBMG, 453-BBBP, 6YFVW, 78V9D, and more
• Rigorous Testing: Each battery undergoes strict quality control to ensure reliable performance and safety

For complete laptop maintenance, explore our range of laptop chargers, adapters, and accessories compatible with your Dell system.

High-Capacity 40Wh Power – Extended Runtime

The Lapgrade M5Y1K laptop battery delivers substantial power to keep you productive throughout the day. With 40Wh capacity and 2600mAh rating, this 4-cell battery provides:

• Extended Operation Time: Approximately 1.5 to 2.5 hours of typical usage depending on your laptop model, screen brightness, and applications running
• Grade A Battery Cells: Premium lithium-ion cells ensure fast charging, low power consumption, and consistent energy delivery over the battery’s lifespan
• 500+ Recharge Cycles: Built to last through hundreds of charge-discharge cycles, providing long-term value and reliability
• Stable Voltage Output: Consistent 14.8V output ensures your laptop components receive clean, stable power for optimal performance

Advanced Safety Features and Certifications

Safety is paramount in battery design. The Lapgrade replacement battery for Dell Inspiron incorporates multiple layers of protection:

• Built-in Circuit Protection: Multi-function protection against overcharging, over-discharging, overheating, and short circuits ensures safe operation in all conditions
• Smart Control Chip: Integrated IC chip intelligently manages power delivery, optimizing charging speed and extending battery life
• International Safety Certifications: CE, FCC, and RoHS certified, meeting rigorous safety and environmental standards
• Quality Assurance: Each battery is 100% new from manufacturer with no refurbished or recycled cells

Technical Specifications

Battery Care and Maintenance Tips

To maximize the lifespan and performance of your new Lapgrade M5Y1K battery, follow these simple guidelines:

• Initial Charging: For best results, fully charge the battery before first use. The battery may have been in storage and requires a full charge to reach optimal capacity
• Regular Use: For optimal battery health, perform a full discharge cycle (down to 5-10%) followed by a full charge at least once a month
• Storage Recommendations: If storing the battery for extended periods, charge to approximately 40% capacity and store in a cool, dry place between 20-25°C
• Compatible Charger: Use the original Dell AC adapter or a high-quality replacement to ensure proper charging and battery longevity

Package Contents

• Lapgrade M5Y1K 14.8V 40Wh 4-Cell Lithium-Ion Replacement Battery
• User Manual / Installation Guide
• Warranty Card (12 Months Registration)

Important Note: Please verify your laptop model and original battery part number before purchasing. This battery is designed as a direct replacement and requires no modification or special tools for installation.

Why Buy from Thencix?

Thencix is India’s trusted source for laptop replacement parts and accessories. Every battery is specification-verified, securely packaged, and backed by dedicated after-sales support.

• Authentic products with manufacturer-verified specifications
• Professional, damage-safe packaging
• Fast delivery across India
• GST invoice with every order
• Cash on Delivery available
• Guided installation support via WhatsApp
• In-house warranty assistance — no need to contact the brand directly
• Warranty appointments arranged for you

Support:
Email: support@thencix.com
WhatsApp: +91 98911 50949

Browse our complete catalog of laptop batteries, chargers, and replacement parts for all major brands.

Compatibility Guide – Find Your Dell Model

This M5Y1K replacement battery is compatible with the following Dell laptop series. Please verify your model number before ordering:

• Dell Inspiron 14 3000 Series: 3451, 3452, 3458, 3459, 3462, 3467
• Dell Inspiron 15 3000 Series: 3551, 3552, 3558, 3559, 3565, 3567
• Dell Inspiron 15 5000 Series: 5551, 5552, 5555, 5558, 5559
• Dell Inspiron 17 5000 Series: 5755, 5758, 5759
• Dell Vostro 14 3000 Series: 3458, 3459, 3468
• Dell Vostro 15 3000 Series: 3558, 3559, 3568
• Dell Latitude: 3460, 3470, 3560, 3570