EHECAPAR HT03XL Laptop Battery for HP Pavilion 14/15/17

EHECAPAR HT03XL is a direct-fit lithium-ion replacement battery designed to restore runtime to compatible HP Pavilion and ProBook laptops that use part numbers like L11119-855 and HSTNN-DB8R.

If your HP Pavilion laptop no longer holds a charge or shuts down unexpectedly, the HT03XL offers an affordable option to bring back portable power. This battery is built to match the original battery's electrical specifications—11.55V and 41.9Wh (3470mAh)—and fits many Pavilion 14, 15 and 17 series models as well as several G7 and 300-series notebooks. Read on to confirm compatibility, understand what to expect from installation and performance, and learn whether this pack suits your needs.

Which HP models and part numbers does this battery work with?

The HT03XL is manufactured to be compatible with a wide range of HP Pavilion identifiers and OEM part numbers. It lists direct fit for many Pavilion 14, 15 and 17 SKUs and for laptop part numbers such as HSTNN-DB8R, L11421-1C1 and L11119-855. Always cross-check the part number printed on your original battery or in your laptop's service documentation before purchase.

• Compatible series: Pavilion 14, 15, 17 and HP G7/300-series notebooks.
• Supported OEM part numbers: HSTNN-DB8R/DB8S, L11119-855, L11421-1C1/C2, TPN-x models.
• Examples: 14-CE3065ST, 15-CS0053CL, 17-BY1053DX, 240/245/250/255 G7 models.

What are the technical specifications and what performance should I expect?

This HT03XL pack is a 3-cell lithium-ion battery rated at 11.55 volts with a capacity of 41.9Wh (3470mAh). It’s designed to mirror the original battery chemistry and voltage to ensure stable performance and safe charging with the laptop’s built-in power management. Expect battery life similar to the original when the laptop’s power profile and usage patterns remain unchanged.

• Battery type: Li-ion, 3-cell construction for compact fit.
• Voltage & capacity: 11.55V, 41.9Wh / 3470mAh for consistent runtime.
• Color and finish: black casing to match most HP internals.

How easy is installation and what safety precautions should I follow?

Installation is straightforward for most users comfortable opening a laptop back panel: power down, unplug, remove the old battery and swap in the HT03XL. Use a small screwdriver suited to your laptop screws and avoid forcing connectors. Take simple safety steps—work on a non-conductive surface, avoid metal tools near contacts, and follow manufacturer guidance for disposal of the old battery.

• Installation: remove back cover, unplug old battery, seat HT03XL and reconnect.
• Tools: small Phillips screwdriver and plastic pry tool recommended.
• Safety: power off, unplug charger, ground yourself, recycle old battery responsibly.

Will this battery affect warranty, and how long will it last?

Replacing a removable battery typically won’t void your laptop’s main warranty, but check HP’s terms if your device is under an active manufacturer repair agreement. Cycle life varies with usage; expect typical lithium-ion longevity of dozens to a few hundred full charge cycles depending on temperature, charging habits and workload. Periodic calibration and avoiding extreme temperatures will help prolong capacity.

• Warranty: verify HP warranty terms for battery replacement details.
• Longevity: typical lithium-ion cycle life; results depend on use and care.
• Care tips: avoid deep discharges and high-heat environments for longer life.

Who is this for: The EHECAPAR HT03XL is aimed at HP Pavilion and similar laptop owners who need an economical, compatible replacement battery that restores mobile use without buying a new machine. It suits DIYers comfortable with basic laptop disassembly, IT technicians stocking common replacement parts, and anyone wanting to extend the daily portability of supported HP 14", 15" and 17" models or G7/300-series notebooks.

• Specifications: HTO3XL battery compatible with HP L11119-855 battery， Battery Type: Li-ion Voltage: 11.55V Capacity: 41.9WH 3470mAh; Cells: 3-cell; Color: Black
• Universal Compatibility： EHECAPAR Compatible with HP Pavilion 14 Series and many Pavilion 15 and 17 Series models
• Compatible Part Numbers： HSTNN-DB8R, HSTNN-DB8S, L11421-1C1, L11421-2C1 and more
• What you get: one HT03XL EHECAPAR compatible replacement battery for HP laptops