BTI DL-E5550 7.4V 38Wh Li-Ion Battery for Latitude E5450 & E5550

Upgrade your Dell Latitude experience with the BTI DL-E5550 7.4V 38Wh Li-Ion Battery. This high‑quality replacement battery is engineered to meet or exceed OEM standards, delivering dependable power, extended runtime, and safer charging for your Latitude E5450 and E5550 laptops. If you’re seeking a reliable energy source after an aging battery, the DL-E5550 offers a perfect balance of performance, durability, and value. Compatible across a broad range of OEM cross‑references including 0G5M10, 451-BBLN, F5WW5, PF69Y, YM3TC, 0WYJC2, 5XFWC, G5M10, R9XM9, 451-BBLK, 8V5GX, K9GVN, VMKXM, 451-BBLL, PF59Y, and WYJC2, this battery is designed to fit seamlessly with Latitude E5450 and E5550 chassis for a snug, secure, and reliable connection.

• Long-lasting runtime for on‑the‑go productivity: with a 38Wh capacity, this battery delivers ample power for busy workdays, campus sessions, or travel. Expect hours of use between charges, helping you stay productive without being tethered to a wall outlet.
• OEM‑care compatibility and safe operation: engineered to align with the Latitude E5450/E5550 power system, the DL-E5550 provides accurate charge reporting and safe interaction with your laptop’s battery management circuitry. Built-in protection helps guard against overcharge, over-discharge, short circuits, and overheating, preserving both battery health and device safety.
• Premium Li‑Ion chemistry for reliability and efficiency: this battery uses high‑quality lithium‑ion cells designed for steady performance, balanced energy density, and low self‑discharge. The result is stable voltage delivery across discharge cycles and extended life across multiple charge cycles, even in varied operating environments.
• Easy replacement with a precise fit: the DL-E5550 is shaped and sized to match the original battery footprint, ensuring simple removal of the old unit and quick installation of the new one. A secure fit minimizes wobble, maintains proper docking alignment, and keeps power connections solid during use.
• Confidence with a proven replacement option: backed by industry‑leading standards and tested to meet or surpass original specifications, this battery provides dependable performance for business professionals, students, and everyday users who rely on reliable power throughout the day.

Technical Details of BTI DL-E5550 Battery

• Battery Type: Lithium‑ion (Li‑ion) rechargeable
• Voltage: 7.4V
• Capacity: 38Wh (approx. 5,000mAh depending on the cell configuration)
• Chemistry: Lithium‑ion capable of multiple charge/discharge cycles with efficient energy delivery
• Compatibility: Latitude E5450, Latitude E5550; OEM cross‑references include 0G5M10, 451-BBLN, F5WW5, PF69Y, YM3TC, 0WYJC2, 5XFWC, G5M10, R9XM9, 451-BBLK, 8V5GX, K9GVN, VMKXM, 451-BBLL, PF59Y, WYJC2

How to Install BTI DL-E5550 Battery

• Power down and unplug: completely shut down your Latitude and disconnect from any power adapters or peripherals before starting.
• Access the battery compartment: flip the unit over and locate the service panel or battery bay according to Dell’s user manual for your model. Use the appropriate screwdriver if a panel cover is secured.
• Remove the old battery: carefully disconnect the battery connector from the motherboard, then unfasten any retaining screws or brackets. Gently lift the old battery away from the compartment, taking care not to bend cables or connectors.
• Position the new battery: align the DL-E5550 with the battery bay, ensuring the connector lines up with the motherboard port. Reattach any screws or brackets to secure the new battery in place.
• Reconnect and test: connect the battery to the motherboard, replace the service panel, and power on the laptop. Allow the battery to calibrate with the system by charging to full before normal use, and perform a brief discharge/charge cycle to ensure accurate reporting.

Frequently Asked Questions

• Q: Is the BTI DL-E5550 compatible with Dell Latitude E5450 and E5550?
  A: Yes. The DL-E5550 is designed as a replacement for Latitude E5450 and E5550 models and supports the OEM cross‑references listed (0G5M10, 451-BBLN, F5WW5, PF69Y, YM3TC, 0WYJC2, 5XFWC, G5M10, R9XM9, 451-BBLK, 8V5GX, K9GVN, VMKXM, 451-BBLL, PF59Y, WYJC2).
• Q: What is the capacity and runtime of this battery?
  A: The DL-E5550 provides 38Wh of energy, translating to extended runtime suitable for typical work sessions, online classes, and daily computing tasks. Actual runtime varies with screen brightness, processor load, and peripheral usage.
• Q: How does this battery protect my device?
  A: The battery includes smart protection features such as overcharge protection, short‑circuit protection, temperature monitoring, and safe charging management to help preserve battery health and device safety during charging and operation.
• Q: How should I replace my old battery with the DL-E5550?
  A: Follow the installation steps outlined in the guide: power down, access the battery bay, remove the old unit, install the new DL-E5550, reconnect, and perform a full charge cycle to calibrate reporting by the system.
• Q: Is this battery covered by a warranty?
  A: Yes, BTI replacement batteries typically come with a warranty that covers manufacturing defects and performance within the specified terms, offering assurance for reliability and long‑term use.