BTI DJ1J0-BTI 11.4V 42Wh Li-Ion Battery for Dell Latitude

The BTI DJ1J0-BTI 11.4V 42Wh Li-Ion Battery is a high-performance replacement designed to restore the power and reliability your Dell Latitude laptop needs for busy workdays, dynamic classrooms, and on-the-go productivity. Engineered as an OEM-grade solution, this battery delivers dependable runtime with the kind of durability you expect from a trusted BTI component. Compatible with a wide range of Latitude models, including the 7280, 7380, 7390, 7290, 7480, and 7490 series, it locks into place with a precise fit and reliable electrical connections so you can work, learn, and create without interruption. Built to maximize runtime while maintaining safety and battery health, this 11.4V, 42Wh Li-Ion cell pack is ready for long sessions, daily commuting, and everything in between. Whether you’re plugging in at the office, charging from a coffee shop, or returning to the library, this battery is designed to deliver steady power when you need it most, with monitoring features that help preserve battery life and prevent unexpected shutdowns.

• Extended runtime for Dell Latitude laptops: With a 42Wh capacity at 11.4V, this BTI replacement battery provides meaningful endurance for daily tasks, multimedia, and light-to-moderate workloads. It helps you stay productive when you’re away from a power outlet, enabling longer work sessions, more classroom time, and fewer interruptions for frequent recharging.
• OEM-grade compatibility and fit: Engineered to align with the Dell Latitude chassis you know—models such as 7280, 7380, 7390, 7290, 7480, and 7490—this battery installs with a snug, secure fit. The meticulously designed connector layout ensures reliable connection with the battery bay and internal circuits, so you experience steady voltage delivery without wobble or looseness that can cause power dropouts.
• Reliable Li‑Ion chemistry with safety features: The 11.4V Li-Ion chemistry balances energy density and cycle life to support long-lasting performance. Built-in protection mechanisms guard against overcharge, deep discharge, short circuits, and overheating, helping to extend battery health and protect your laptop’s internal power management system.
• Simple, tool-free replacement for quick actions: Replacing your Latitude battery with the DJ1J0-BTI is a straightforward process designed for both DIY enthusiasts and IT departments. The battery snaps into place with minimal effort, reducing downtime and empowering you to restore power quickly after a routine maintenance cycle or battery aging.
• Quality assurance and broad compatibility: This BTI battery aligns with multiple Dell Latitude SKUs and part numbers (0DJ1J0, C27RW, 0NF0H, DJ1J0, 451-BBZL, PGFX4, 451-BCJO), making it a versatile option for repairs, replacements, and upgrades. It’s built to meet or exceed original performance expectations and is designed to be a reliable replacement that maintains your device’s original balance of weight, balance, and runtime.

Technical Details of BTI DJ1J0-BTI 11.4V 42Wh Li-Ion Battery

• Model: BTI DJ1J0-BTI
• Voltage: 11.4V
• Capacity: 42Wh
• Chemistry: Li-Ion
• Part numbers: 0DJ1J0, C27RW, 0NF0H, DJ1J0, 451-BBZL, PGFX4, 451-BCJO
• Compatible Latitude models: Latitude 7280, Latitude 7380, Latitude 7390, Latitude 7290, Latitude 7480, Latitude 7490
• Product family: Replacement battery for Dell Latitude series

How to Install BTI DJ1J0-BTI 11.4V 42Wh Li-Ion Battery

• Before you begin: Power down your Latitude notebook completely and unplug any connected peripherals. Ensure you are working on a non-conductive surface and have gathered the necessary tools if your model requires a small screwdriver for the bottom panel.
• Prepare the device: Close the lid, lay the laptop upside down, and locate the bottom access panel. Some Latitude models use removable screws; have a precision screwdriver on hand if needed.
• Remove the old battery: Unscrew and carefully lift the old battery from its bay. Disconnect the battery connector from the motherboard or battery flex cable, taking care not to bend or damage the connector or housing.
• Position the new battery: Align the BTI DJ1J0-BTI with the battery bay, ensuring the connector lines up with the socket. Gently press the battery into place until it sits evenly and securely in the chassis.
• Reconnect and secure: Reconnect the battery cable to the motherboard or battery harness. Reassemble the bottom panel, tighten screws to the manufacturer’s torque, and power on the device to verify the battery is detected and charging properly.
• First charge and calibration: If the laptop prompts for a calibration or a full cycle, follow the on-screen guidance to maximize battery health. It’s common to allow a full discharge and recharge after installation to help the battery learn the device’s power profile.
• Safety and missteps to avoid: Do not touch copper contacts or bend connectors. Avoid forcing the battery into the bay, and never operate the device with a damaged battery. If you notice unusual warmth, disconnect, power down, and inspect for improper seating or damage.

Frequently Asked Questions

• Q: Is this BTI battery compatible with all Dell Latitude models? A: It is specifically listed for Latitude 7280, 7380, 7390, 7290, 7480, and 7490 series. If your model is within those series, this battery should be a reliable replacement option. Check your device’s battery model or service tag to confirm compatibility before purchase.
• Q: What is the expected runtime with this 42Wh battery? A: Runtime depends on usage, settings, and workload. Light web browsing and document work typically yield longer uptime, while multimedia, gaming, or high-brightness scenarios reduce runtime. The 42Wh capacity is designed to deliver meaningful hours of productivity between charges for Latitude devices.
• Q: Are there safety features included? A: Yes. The Li‑Ion chemistry is paired with protection mechanisms to guard against overcharge, short circuits, overheating, and excessive discharge, helping to safeguard both the battery and the laptop’s power management system.
• Q: How should I dispose of the old battery? A: Follow your local regulations for battery disposal or recycling. Do not throw lithium batteries in regular trash. Many electronics retailers and municipal programs accept used batteries for proper recycling.
• Q: Does this battery come with any warranty? A: Warranty terms vary by seller and region. Refer to the retailer’s warranty policy for the BTI DJ1J0-BTI battery to understand coverage duration and conditions.
• Q: Will this battery affect weight or balance of my Latitude laptop? A: Replacement batteries are designed to match the weight and form factor of the original unit to maintain balance and ergonomics. However, slight variations can occur between battery batches; the BTI replacement aims to preserve the device’s original feel.