TREE.NB LK03XL Battery Replacement for HP Envy X360 – 55.8Wh, 11.55V | 3-Cell

Overview

Refresh your HP Envy X360 with the TREE.NB LK03XL battery, a purpose-built replacement designed to restore everyday portability. This 3-cell battery delivers a compact, lightweight profile while delivering consistent power for daily tasks. It’s crafted to feel like a natural part of your laptop, helping you extend unplugged use between charges.

With a voltage of 11.55V and a capacity of 55.8Wh, the LK03XL aims to balance runtime with a slim form factor. The design emphasizes reliable performance across compatible Envy X360 configurations, supporting smoother transitions from desk to travel, school, or coffee-shop workflows.

Key specs at a glance

• Model: LK03XL
• Voltage: 11.55V
• Capacity: 55.8Wh
• Cell type: 3-Cell

While the battery is built to align with select Envy X360 models, it is important to confirm compatibility before purchasing. The LK03XL is not compatible with BN03XL or LE03XL batteries, nor with batteries outside the LK03XL family.

Compatibility & fit

• Designed for HP Envy X360 Convertible models across 15-inch and 17-inch lines listed in product notes.
• Supports a broad range of 15-bp0xx, 15m-bp0xx, 15-mb series, 17-ae0xx and related configurations as listed in compatibility details.
• Compatible part numbers include LK03XL, LK03048XL, LK03052XL, 916368-421, 916368-541, 916814-855, HSTNN-LB7U, HSTNN-UB71, TPN-W127, TPN-W128, and more.

Important note: verify your original battery model matches LK03XL before purchasing. If you’re unsure, compare your laptop’s current battery label with the listed LK03XL equivalents to ensure a proper fit.

What’s included and installation mindset

• Battery model: LK03XL
• 3-cell design for lighter weight and steadier balance
• Comprehensive compatibility considerations to help guide selection

For a smooth replacement, double-check the model and part numbers in your laptop’s battery compartment. The goal is a clean swap that enables reliable power delivery during daily use, whether you’re writing, streaming, or navigating multiple tabs.

Real-life use and benefits

Imagine a day without frequent recharging interruptions: a long lecture, a productive coffee shop session, or a work-from-home stretch with back-to-back calls. The LK03XL offers the potential to support extended unplugged work sessions while you manage tasks, presentations, or creative projects. While individual results vary, many users appreciate the balance between capacity and a streamlined footprint.

Why choose TREE.NB

We back our batteries with responsive support and service options. If you have questions, our team is ready to help via email, aiming to clarify compatibility, installation tips, and any post-purchase concerns. Our goal is to support you through a seamless replacement journey.