BTI DL-E5400H Notebook Battery

Meet the BTI DL-E5400H, a premium replacement notebook battery engineered for Dell Latitude users who demand reliability, longevity, and seamless performance. This 9-cell lithium-ion battery is designed to power Dell Latitude E5400, E5410, and E5500 series notebooks, giving you the freedom to work, study, or travel without the constant worry of a dying battery. With a robust 10.8V and an impressive 7800mAh capacity (84Wh), you’ll experience extended runtimes that help you stay productive on the go. BTI’s commitment to quality means you’re getting a battery that’s built to meet or exceed OEM standards, delivering consistent power, dependable safety features, and easy compatibility with the cross-reference models KM771, Wu841, 0KM970, 0RM668, and the part number 312-0902. This DL-E5400H is more than a replacement—it’s a trusted energy source designed to fit your Dell Latitude like a original part, minimizing downtime and maximizing uptime for professionals, students, and travelers alike.

• Extended, dependable runtime for Dell Latitude laptops. The DL-E5400H is crafted to deliver steady power through your daily workflow, from document editing and web research to multimedia tasks and light design work. Its 9-cell configuration optimizes balance between power and weight, providing a long-running battery solution that helps you stay productive during long flights, road trips, or busy workdays away from a charging outlet.
• High capacity with reliable endurance. At 7800mAh (7.8Ah) and 84Wh, this battery supplies ample energy across multiple sessions between charges. The high-energy density is paired with careful cell arrangement to promote consistent voltage delivery, reducing the risk of sudden power drops and helping your Dell Latitude maintain peak performance through extended use.
• Compatibility you can trust. Specifically designed as a replacement for Dell Latitude models E5400, E5410, and E5500, the DL-E5400H also aligns with the cross-reference identifiers KM771, Wu841, 0KM970, and 0RM668, with the commonly used part number 312-0902. Whether you’re replacing a worn-out battery or stocking up for fleet deployment, this BTI battery aligns with the most common Dell Latitude configurations in the field.
• Safety-first design for worry-free operation. Built with smart protection against overcharge, over-discharge, short-circuit, and temperature extremes, this lithium-ion battery is engineered to help safeguard your notebook and data. The DL-E5400H follows industry-standard safety practices to minimize risk while maximizing battery life and performance, providing peace of mind for IT teams and individual users alike.
• Easy installation and plug-and-play convenience. The DL-E5400H is designed to drop into the original battery bay with minimal fuss. Its connectors, fit, and dimensions are matched to Dell Latitude shells, making it a straightforward replacement that reduces downtime. With proper handling and a full charge cycle after installation, you’ll be up and running quickly, without complicated setup or software pairing requirements.

Technical Details of BTI DL-E5400H Notebook Battery

• Battery Type: Lithium-Ion (Li-ion)
• Cells: 9-cell
• Voltage: 10.8V
• Capacity: 7800mAh
• Energy: 84Wh
• Compatibility: Dell Latitude E5400, E5410, E5500
• Cross References/Part Numbers: KM771, Wu841, 0KM970, 0RM668, 312-0902
• Form Factor: Replacement battery designed to fit the Dell Latitude battery bay

How to Install BTI DL-E5400H Notebook Battery

• Power down the notebook completely and unplug from any power source. Close the lid and set the device face down on a clean, flat surface.
• Locate the battery release latches on the bottom panel of the notebook. Slide the latch(es) to unlock and remove the existing battery carefully.
• Take the DL-E5400H and align its connector with the notebook’s battery port. Gently slide the battery into the bay, ensuring it sits evenly and the contacts engage securely.
• Push the battery all the way in until the latch clicks into place, confirming a secure fit. Reattach the back panel if it was removed for access.
• Charge fully before first use. Connect the charger and allow the battery to reach 100% capacity. For best results, perform a few full charge-discharge cycles to calibrate the battery indicator.

Frequently asked questions

• Q: Is the BTI DL-E5400H compatible with my Dell Latitude E5400, E5410, or E5500? A: Yes. This replacement is specifically designed for Dell Latitude E5400/E5410/E5500 notebooks and aligns with cross-reference numbers KM771, Wu841, 0KM970, and 0RM668, with the part number 312-0902.
• Q: What are the key specifications of this battery? A: It is a 9-cell lithium-ion battery with 10.8V, 7800mAh capacity, and 84Wh energy. This combination delivers substantial runtime while maintaining a slim profile suitable for the Latitude series.
• Q: How should I care for and maximize battery life? A: To extend overall battery life, avoid exposing the battery to extreme temperatures, perform regular full-charge cycles, keep the notebook updated with the latest BIOS/firmware, use power-saving settings (dim screen, reduce background processes), and store the battery in a cool, dry place when not in use for extended periods.
• Q: Is installation easy for non-technical users? A: Yes. The DL-E5400H is designed as a direct replacement with a plug-and-play fit. Following the simple step-by-step installation guide ensures a quick swap with minimal tools and no software configuration required.
• Q: Does this battery come with safety protections? A: Yes. The battery features built-in protections against overcharge, over-discharge, short circuits, and thermal issues, following standard safety practices for Li-ion replacement batteries.