BTI 451-BCMN-BTI 4-Cell 15.2V Li-Ion Battery for Dell Latitude 5400, 5400 Chromebook, 5500, Precision 3540

The BTI 451-BCMN-BTI 4-Cell 15.2V Li-Ion Battery is a premium replacement designed to restore peak performance for Dell Latitude 5400, 5400 Chromebook, 5500, and Precision 3540 laptops. Built for reliability on the move, this high-quality pack delivers solid run time, fast recharges, and dependable power when you need it most—whether you’re commuting, traveling, or working through a demanding project. Engineered to meet or exceed original specifications, it provides a safer, longer-lasting power solution that helps you stay productive without interruption. This model uses a compact 4-cell configuration and a 15.2-volt design to fit snugly in the original battery bay while delivering steady, consistent performance across daily tasks, multimedia, and professional workloads.

• Long-lasting runtime on the go: Experience reliable power for work, study, and travel with a 4-cell Li-Ion pack engineered for steady voltage delivery and efficient energy use. The battery is designed to minimize performance drops during extended sessions, so you can stay productive longer between charges.
• Broad compatibility for Dell systems: Specifically formulated to fit Dell Latitude 5400, 5400 Chromebook, 5500, and Precision 3540 models, enabling a seamless replacement that preserves the laptop’s original balance, weight, and ergonomic feel.
• Premium safety and build quality: Constructed with high-grade cells and robust protection features to guard against overcharge, over-discharge, short circuits, and thermal events, helping safeguard your device and data during charging and operation.
• Simple, tool-free installation with reliable fit: Designed as a direct replacement, the BTI battery slides into the existing battery bay with minimal effort, snaps securely into place, and reconnects without the need for special tools or adapters.
• Consistent performance through smart cell balance: The battery uses balanced cell chemistry to maintain uniform power delivery across cells, reducing voltage sag and improving durability over many charge‑discharge cycles for dependable day‑to‑day use.

Technical Details of BTI 451-BCMN-BTI

• Part Number: BTI 451-BCMN-BTI
• Battery Type: 4-Cell Li-Ion
• Voltage: 15.2V
• Chemistry: Lithium-Ion (Li-Ion)
• Cells: 4-Cell configuration
• Compatibility: Dell Latitude 5400, Latitude 5400 Chromebook, Latitude 5500, Precision 3540
• Construction Quality: OEM-grade replacement built to meet or exceed original specifications with safety and durability in mind
• Usage Focus: Replacement battery designed to restore full portable power and extend laptop uptime for professional, educational, and personal use

how to install BTI 451-BCMN-BTI

• Power off your laptop, unplug from any power source, and place the device on a clean, flat surface.
• Close the lid, turn the device over, and remove the back cover or access panel according to your model’s service manual.
• Carefully disconnect the existing battery connector from the motherboard, using minimal force to avoid damage to the connector or pins.
• Remove the old battery from the bay and align the BTI 451-BCMN-BTI so the connectors line up with the laptop’s battery interface.
• Secure the battery in place with the original screws, reattach the back cover, and reconnect the battery terminal to the motherboard.
• Plug in the charger and power on the laptop. Allow the new battery to calibrate by charging to full and discharging once before extended use.

Frequently asked questions

• Q: Is this battery compatible with my Dell Latitude 5400 or Precision 3540? A: Yes. The BTI 451-BCMN-BTI is designed to fit Dell Latitude 5400, 5400 Chromebook, 5500, and Precision 3540 systems, providing a direct replacement that preserves form factor and performance.
• Q: How long will the battery last between charges? A: Runtime depends on usage, screen brightness, running applications, and power management settings. In typical daily use, you should experience a noticeable improvement in uptime compared with aging batteries.
• Q: Should I expect the battery to arrive pre-charged? A: Replacement batteries commonly arrive with a partial charge. Before heavy use, charge fully to calibrate the battery and optimize its capacity readings.
• Q: Does this battery include safety protections? A: Yes. The BTI 451-BCMN-BTI includes standard safety features such as protection against overcharge, over-discharge, short circuits, and safe temperature operation to help protect both the battery and the laptop.
• Q: How should I dispose of an old battery? A: Follow local regulations for battery disposal. Many electronics retailers and recycling programs accept used Li-Ion packs for proper, environmentally responsible recycling.