BTI ST03XL-BTI 11.55V 49Wh Li-Ion Battery for HP EliteBook

Unlock extended runtime and reliable performance with the BTI ST03XL-BTI 11.55V 49Wh Li-Ion Battery. Engineered as a high-capacity replacement for HP EliteBook models, this battery is designed to keep you productive on the go, whether you’re traveling for business, teaching, or simply working remotely. With compatibility for popular EliteBook variants such as the 720 G4, 725 G4, 820 G4, and 828 G4, this battery provides a robust power solution that helps you stay powered through meetings, presentations, and uninterrupted workflow. Built to meet OEM standards, it delivers consistent voltage, steady discharge, and reliable recharge cycles, ensuring your laptop operates at its best every day.

• High-capacity design: 49Wh capacity delivers longer run times between charges, letting you work, browse, and stream more before needing a recharge.
• Exact compatibility: Specifically engineered for HP EliteBook models including 720 G4, 725 G4, 820 G4, and 828 G4, with the BTI ST03XL-BTI branding for easy identification.
• Safe, dependable Li-Ion cells: Built with modern safety protections to guard against overcurrent, short circuit, overtemperature, and other common battery risks.
• OEM-grade part numbers: Aligns with 1FN05AA, 854109-850, ST03049XL-PL and ST03XL references, ensuring straightforward replacement and reliable fitment.
• Optimized performance: Delivers consistent voltage at 11.55V, designed to work with your laptop’s power management system for balanced power delivery and longer cycle life.

Technical Details of BTI ST03XL-BTI Battery

• Battery type: Li-Ion
• Voltage: 11.55V
• Capacity: 49Wh
• Model / Part references: BTI ST03XL-BTI; compatible with HP EliteBook 720 G4, 725 G4, 820 G4, 828 G4
• Compatible part numbers: 1FN05AA, 854109-850, ST03049XL-PL, ST03XL
• Form factor: Replacement battery designed to fit the EliteBook chassis—exact dimensions match OEM specifications for secure seating and reliable contacts

How to Install BTI ST03XL-BTI Battery

• Power down your HP EliteBook and disconnect all external devices.
• Close the lid and flip the notebook over to access the bottom battery compartment.
• Carefully remove the old battery by releasing the latches or screws as required by your model, and disconnect the battery connector.
• Align the new BTI ST03XL-BTI battery with the connector and seating position, then secure it with the latch(s) or screws provided.
• Reconnect the battery, reassemble the bottom cover, and power on your laptop to confirm proper operation and battery recognition.
• Charge fully before first use to calibrate the battery gauge and ensure accurate runtime readouts.

Frequently asked questions

• Q: Is the BTI ST03XL-BTI battery compatible with HP EliteBook 720 G4, 725 G4, 820 G4, and 828 G4?
  A: Yes. This replacement is designed to match the power and form factor requirements of those EliteBook models and supports typical HP power management features.
• Q: What is the capacity and voltage of this battery?
  A: The battery delivers 11.55V with a 49Wh capacity, offering extended usage between charges for everyday productivity tasks.
• Q: Are there safety protections built into this battery?
  A: Yes. The BTI ST03XL-BTI battery includes essential safety protections against overcurrent, overheating, short circuits, and other common hazards.
• Q: How long does it take to recharge?
  A: Charging time depends on your charger and usage, but the battery supports standard HP charging cycles and will typically reach full charge within a few hours with a compatible charger.
• Q: What should I do before first use after installation?
  A: It’s best to fully charge the battery, then allow it to cycle once or twice to calibrate the battery gauge for accurate runtime reporting.