BTI WW8N8-BTI 3-Cell 11.4V Li-Ion Notebook Battery for Dell Latitude Series

Power up with confidence using the BTI WW8N8-BTI 3-Cell 11.4V Li-Ion Notebook Battery, a reliable OEM-replacement designed specifically for Dell Latitude 7340, 7340 2-in-1, 7440, 7440 2-in-1, 7450, 7640, and 7640 2-in-1 laptops. This high-quality battery delivers steady, dependable performance for professionals, students, and creatives who rely on all-day mobility. Engineered to match the original Dell power profile, it provides a seamless replacement experience with easy installation, robust safety features, and consistent runtime that keeps you productive wherever work takes you.

• Designed for Dell Latitude series: The BTI WW8N8-BTI fits widely used Latitude models including 7340, 7340 2-in-1, 7440, 7440 2-in-1, 7450, 7640, and 7640 2-in-1, ensuring broad compatibility for a simple, reliable upgrade or replacement.
• 11.4V, 3-cell, 57Wh capacity: A compact, energy-dense Li-Ion pack that delivers substantial unplugged runtime without adding unnecessary bulk to your device. Ideal for on-the-go productivity, travel, remote work, and classroom use.
• OEM-replacement part numbers: Replaces WW8N8, V0W55, 047T0, CN-0047T0, making it easy to verify compatibility against Dell documentation or parts catalogs when you’re sourcing a spare or replacement.
• Safety and reliability first: Built with smart protection features to guard against overcharge, short-circuiting, overheating, and unexpected power fluctuations, helping extend battery life and safeguard your device.
• Quality you can trust: BTI’s replacement batteries are designed to meet or exceed OEM specifications, offering dependable performance, consistent voltage delivery, and a reliable fit that minimizes downtime and service interruptions.

Technical Details of BTI WW8N8-BTI

• Model: BTI WW8N8-BTI 3-Cell 11.4V Li-Ion Notebook Battery
• Cell configuration: 3-Cell Li-Ion
• Voltage: 11.4V
• Capacity: 57Wh
• Replaces OEM/Original equipment part numbers: WW8N8, V0W55, 047T0, CN-0047T0
• Compatible models: Dell Latitude 7340, 7340 2-in-1, 7440, 7440 2-in-1, 7450, 7640, 7640 2-in-1
• Type: Lithium-Ion (Li-Ion) battery

How to Install BTI WW8N8-BTI

Installing the BTI WW8N8-BTI is designed to be straightforward for most users with basic hardware experience. Before you begin, ensure your laptop is powered off and unplugged from any power source. Keep the device on a clean, static-free surface to protect internal components. Follow these steps to replace or upgrade your Dell Latitude battery:

• Turn off the laptop, close the lid, and disconnect any external devices or accessories.
• Place the laptop face down on a soft, flat surface and remove the bottom access panel using the appropriate screwdriver. Keep track of screws and their positions for reassembly.
• Locate the existing battery and disconnect the battery cable from the motherboard by gently loosening the connector. If your model uses a separate battery bay, remove the screws or latches securing the old battery in place.
• Carefully lift out the old battery, taking care not to bend any circuitry or puncture the pack. Align the new BTI WW8N8-BTI with the connector and battery bay, then insert it firmly into place.
• Secure the new battery with the original screws or latches, reconnect the battery cable to the motherboard, and replace the bottom panel. Power on the device to confirm a successful boot and proper charging behavior. If the battery indicator shows charging, give it a full cycle to calibrate the battery gauge for the most accurate runtime readouts.

Tips for best results:

• Charge the new battery to 100% after installation and run it through a few complete discharge/charge cycles to calibrate the fuel gauge.
• Avoid exposing the battery to extreme temperatures; use the device in a well-ventilated area and store it in a cool, dry place when not in use.
• Perform occasional health checks by monitoring runtime and charge cycles; if you notice rapid drain or unusually short runtimes, consider reseating connections or contacting support for assistance.

Why Choose BTI WW8N8-BTI for Your Dell Latitude

The BTI WW8N8-BTI is more than a simple power source—it’s a thoughtful upgrade designed to keep you productive without interruption. Dell Latitude users often require dependable battery performance to meet demanding schedules. This 3-cell, 11.4V Li-Ion option delivers reliable energy delivery for everyday tasks, from document editing and video conferencing to web browsing and multimedia streaming. By matching the technical specs of the OEM battery, BTI ensures compatibility and fit that minimizes the risk of loose fits or connector misalignment, which can be common with third-party replacements.

One of the standout advantages of this BTI battery is its emphasis on safety. Modern laptops require intelligent power management to prevent overheating and overcharging. The WW8N8-BTI is built with protective circuitry designed to regulate charge rates, monitor temperature, and prevent electrical faults that could compromise the battery or device. This focus on safety translates into peace of mind for professionals who rely on their Dell Latitude devices throughout the day. In addition, the 57Wh capacity is intentionally sized to balance portability with runtime, giving you more minutes between charges without adding excessive weight or bulk to your laptop chassis.

Durability is another critical benefit. The capacity and construction of this BTI replacement battery are intended to endure daily wear and repeated plug-in cycles. When you’re traveling, in meetings, or working remotely, a battery that maintains consistent voltage delivery and steadier performance becomes a real differentiator. For IT managers, having a reliable, OEM-friendly replacement reduces downtime and simplifies procurement, especially when outfitting teams with spare batteries for travel-heavy roles.

As an OEM-replacement, the WW8N8-BTI aligns with Dell’s power specifications while offering the flexibility of a widely-compatible part number set (WW8N8, V0W55, 047T0, CN-0047T0). This compatibility makes it easier to source confidently, whether you’re stocking up as a business, a repair shop, or a personal replacement for future battery cycles. The result is a seamless user experience where installation feels intuitive and the performance aligns with your expectations for long-lasting power on a modern business-class notebook.

Frequently Asked Questions

• Q: Is this battery compatible with my Dell Latitude model?

  A: The BTI WW8N8-BTI is designed to fit Dell Latitude 7340, 7340 2-in-1, 7440, 7440 2-in-1, 7450, 7640, and 7640 2-in-1. It replaces OEM numbers WW8N8, V0W55, 047T0, CN-0047T0. If your device is within these models, this battery should be a proper replacement.

• Q: What is the capacity and expected runtime?

  A: This 3-cell Li-Ion battery offers 57Wh of capacity. Actual runtime varies with usage, settings, and condition of the device, but you can expect extended unplugged operation suitable for typical work, study, or travel days.

• Q: Is the battery safe for daily use?

  A: Yes. The BTI WW8N8-BTI includes built-in safety features such as protection against overcharge, short-circuiting, and overheating, helping to maintain battery health and protect the laptop during charging and operation.

• Q: Do I need to calibrate the new battery?

  A: It’s recommended to perform a full charge-discharge cycle after installation to calibrate the battery gauge, which helps ensure the displayed charge level accurately reflects remaining runtime.

• Q: Does this battery come with a warranty?

  A: BTI replacement batteries typically come with a manufacturer's warranty or a replacement policy. Please check the specific listing details or contact support for warranty terms to confirm coverage in your region.