HP Inc. Primary Laptop Battery - 3-cell Li-ion 49Wh (ST03049XL-PL)

When your HP ProBook 430 G4, 440 G4, 450 G4, 455 G4, or 470 G4 runs out of power in the middle of a workday, this HP Inc. primary battery gets you back online fast. It's a genuine 3-cell lithium-ion pack rated at 49Wh and 11.4V, built to match the original ST03XL series. Slide it into the battery bay, and you're ready for meetings, reports, or travel without hunting for a wall outlet.

Key specifications

• Battery type: Lithium-Ion (Li-ion)
• Number of cells: 3-cell
• Capacity: 49 Wh / 4300 mAh
• Voltage: 11.4 V
• Colour: Black
• Rechargeable: Yes
• Compatible HP part numbers: ST03XL, ST03049XL, 854108-850, 854076-850, HSTNN-UB7C
• Compatible laptop models: HP ProBook 430 G4, 440 G4, 450 G4, 455 G4, 470 G4

Why choose it

This battery is manufactured by HP Inc., so it meets the same quality and safety standards as the one that came with your laptop. The 49Wh capacity provides a solid runtime for everyday productivity, and the 3-cell design keeps weight down for easy portability. You avoid the risks of third-party clones—no swelling, no sudden shutdowns, just reliable power.

Ideal use cases

• Replacing a worn-out original battery that no longer holds a charge
• Keeping a spare battery for long flights or back-to-back meetings
• Refurbishing HP ProBook G4 laptops for resale or internal deployment
• Ensuring uninterrupted work in field service or remote locations

Good to know

Installation is tool-free on most ProBook G4 models: power off, release the latch, swap the battery, and charge fully before first use. The battery is rechargeable and designed for hundreds of charge cycles. Always use an HP-approved AC adapter for optimal charging performance and safety.