BTI VX04XL-BTI 15.4V 90Wh Li-Ion Battery for ZBook 15 G5 & ZBook 15 G6

A dependable, OEM-compatible replacement battery designed specifically for Dell’s professional-grade ZBook 15 series, the BTI VX04XL-BTI 15.4V 90Wh Li-Ion Battery delivers reliable power when you need it most. With a 90Wh capacity and a 15.4-volt design, this battery is engineered to maximize runtime while keeping size and weight in check, making it an ideal upgrade for busy professionals who demand peak performance from their mobile workstation. Built to mirror the exact form and function of the original components, it restores your ZBook to its factory power profile without compromising safety or compatibility. Whether you’re on a design sprint, in a client meeting, or editing on-location, this battery is crafted to support your workflow with consistent, long-lasting energy.

• High-capacity, 90Wh Li‑Ion battery built to power demanding workloads on ZBook 15 G5 and ZBook 15 G6 laptops. This battery is engineered to deliver extended runtimes between charges, enabling longer sessions of 3D modeling, CAD, video editing, and data analysis without constant recharging interruptions. The optimized energy density helps you stay productive during travel or in spaces where wall outlets are scarce, so you can focus on your work rather than on finding a power source.
• Exact OEM compatibility and part-number alignment for a seamless replacement. The VX04XL-BTI is designed to correspond to OEM references HSTNN-IB8F, VX04090XL-PL, L05766-850, VX04XL, L05766-855, and L06302-1C1, ensuring proper connector fit, latch alignment, and electrical interaction with your ZBook’s charging system. This precise compatibility minimizes installation risk and preserves the original laptop safety features, so you can trust the battery to perform as your device expects.
• Lightweight design with robust safety features for portable reliability. While delivering substantial capacity, the VX04XL-BTI remains slim and relatively lightweight, helping to maintain your notebook’s balance and portability. It also includes built-in safety protections—overcharge, over-discharge, short-circuit, and thermal safeguards—to prevent damage to the battery and the laptop, extend overall battery life, and support safer, longer use in varied environments, from the studio to the field.
• Safety-first engineering meets real-world durability. The cell chemistry and internal protection circuitry are selected to minimize degradation under typical operating conditions, with an emphasis on thermal stability and consistent performance. This translates into steadier charging behavior, less heat buildup during heavy workloads, and more predictable performance across a wide range of temperatures, so you can rely on this battery in different climates and work settings.
• Effortless installation and restored performance. The VX04XL-BTI is designed as a straightforward replacement that mirrors the original battery’s dimensions, connectors, and mounting points. With the correct latch engagement and connector alignment, you can swap in a few careful steps and return your ZBook to its full power quickly, enabling you to resume work without prolonged downtime or complex setup procedures. A properly seated battery also reduces the risk of intermittent power loss during critical tasks.

Technical Details of BTI VX04XL-BTI 15.4V 90Wh Li-Ion Battery HSTNN-IB8F, VX04090XL-PL, L05766-850, VX04XL, L05766-855, L06302-1C1 ZBook 15 G5, ZBook 15 G6

• Voltage: 15.4V
• Capacity: 90Wh (Watt-hours)
• Chemistry: Lithium-ion (Li‑Ion)
• OEM Compatibility: HSTNN-IB8F, VX04090XL-PL, L05766-850, VX04XL, L05766-855, L06302-1C1
• Model/Part Numbers: VX04090XL-PL, L05766-850, VX04XL, L05766-855, L06302-1C1
• Compatible Laptops: ZBook 15 G5, ZBook 15 G6

how to install BTI VX04XL-BTI 15.4V 90Wh Li-Ion Battery

To install this replacement battery safely and effectively, begin with a powered-down laptop and a disconnected power source. Place the ZBook on a clean, static-free surface and flip it over to access the battery bay. Gently release the existing battery latch and remove the old unit, taking care not to pull on any connectors. Align the VX04XL-BTI so that the connector pins match the motherboard interface and the battery fits snugly into the bay. Slide the battery into place until it sits firmly and the latch clicks into the locked position. Reconnect any cables you previously detached, reassemble the back panel, and connect the charger to verify proper charging behavior. Power on the device and allow the battery to calibrate by charging to full, then discharging to a low level before charging again. For best results, perform a couple of complete charge-discharge cycles to establish an accurate gauge of your new battery’s capacity. Store and operate the notebook within normal temperature ranges to preserve longevity and performance.

Safety tip: handle the battery by the edges, avoid puncturing the cells, and never attempt to bend, crush, or puncture the pack. If you notice unusual heat, swelling, or a drastic drop in performance, discontinue use and seek professional guidance. Proper disposal of old batteries is essential—follow local recycling guidelines to minimize environmental impact.

Frequently asked questions

Q: Is this battery compatible with ZBook 15 G5 and ZBook 15 G6?

A: Yes. The BTI VX04XL-BTI is manufactured as a replacement for the ZBook 15 G5 and ZBook 15 G6 series and matches OEM references HSTNN-IB8F, VX04090XL-PL, L05766-850, VX04XL, L05766-855, and L06302-1C1, ensuring proper fit and electrical compatibility.

Q: What capacity does the battery offer, and how does that affect runtime?

A: The battery is rated at 90Wh, which typically provides extended runtime for professional workloads. Real-world usage depends on your specific applications, system settings, brightness, and network activity.

Q: Is installation difficult for non-technical users?

A: The installation is designed to be straightforward for most users who are comfortable with basic laptop maintenance. By following step-by-step reseating instructions and ensuring the latch engages securely, you can complete the replacement without specialized tools. If you’re unsure, consult a professional technician.

Q: What safety features does this battery include?

A: The VX04XL-BTI incorporates standard Li‑Ion safety protections, including overcharge protection, over-discharge protection, short-circuit protection, and thermal monitoring. These features help protect both the battery and the laptop during charging and operation.

Q: Is there a warranty or support coverage?

A: Warranty terms vary by retailer and supplier. When purchasing, review the vendor’s policy for details on coverage duration, return options, and what is included in terms of replacement or refund. Supports and compatibility information are provided to help you confirm suitability for your ZBook model.