ASUNCELL TA03XL battery for HP 840 G4 front view for reliable replacement power
ASUNCELL TA03XL battery for HP 840 G4 side ports for easy connection
ASUNCELL TA03XL battery HP 840 G4 with serial label visible, authentic replacement
ASUNCELL TA03XL EliteBook 755 G4 front view, compatible power pack
ASUNCELL TA03XL battery ZBook 14U/15U G4 side view, dependable power
ASUNCELL TA03XL HSTNN-IB7L label visible for HP replacement
ASUNCELL TA03XL packaging preview, ready for store display

ASUNCELL

ASUNCELL TA03XL 854108-850 CS03XL Laptop Battery for HP 840 G4 & EliteBook 755 G4 — 51Wh, 11.55V Replacement

Free U.S. shipping and free 30-day returns. Check the compatible models in the description below.

$33.13

In stock. Ships free, usually within 1–4 business days.

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Spare Keep a spare (2)

Check the listed compatible models and specs before you order. Questions? Email us.

Multi-device One for each device (3)

Free tracked shipping and secure checkout on every U.S. order.

Free shipping

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Free tracked shipping on every order. Most orders arrive within 3–8 business days.

Free 30-day returns

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Return eligible items within 30 days of delivery for a full refund. We email you a prepaid return label.

Peak-demand shipping delays

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During high demand, deliveries may experience short carrier delays. Tracking updates remain active for every order.

Email support

Questions about fit or an order? Email nexoltic@gmail.com. We reply on business days (Mon–Fri).

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Product details

Reliable power for your HP notebook

When you replace a worn battery, you want a dependable, long-lasting solution that fits your workflow. The ASUNCELL TA03XL/CS03XL battery is designed as a direct replacement for HP models such as the 840 G4, EliteBook 755 G4, and the 840/848/850 G4 series, including ZBook 14U and 15U variants that use the HSTNN-IB7L pack. Built with a three-cell Li-ion design and a capacity of 51Wh, this battery is ready to support work, study, and creative tasks with consistent energy.

Key features at a glance

  • Three Li-ion cells powering at 11.55V for steady energy delivery
  • 51Wh capacity designed for longer sessions between charges
  • 100% brand new construction with modern battery chemistry
  • Compatibility as a replacement part for HP laptops in the listed families
  • Up to 500 recharge cycles over the life of the battery for extended use

Why this replacement makes sense for you

In real-world use, users value a swap that minimizes downtime and preserves performance. This TA03XL/CS03XL battery fits snugly into compatible HP models, offering stable power delivery and predictable runtime during busy days away from a power outlet.

Specs and compatibility

  • Voltage: 11.55V
  • Capacity: 51Wh
  • Cells: 3-cell Li-ion
  • Compatibility: HP 840 G4, HP EliteBook 755 G4, HP 840/848/850 G4 series, ZBook 14U/15U G4, HSTNN-IB7L

Care and performance tips

For best results, avoid deep discharges, store in a cool, dry place, and keep firmware up to date. Regular charging cycles help maintain capacity, while proper storage can help extend shelf life when not in use.

What you get

  • ASUNCELL TA03XL/CS03XL battery module
  • Brand-new Li-ion cells with 11.55V, 51Wh capacity
  • Replacement part designed for HP laptops listed above

FAQ

Q: Is this battery compatible with my HP laptop models?

A: Yes. The TA03XL/CS03XL is designed as a replacement for HP 840 G4, EliteBook 755 G4, 840/848/850 G4 series, and ZBook 14U/15U G4 that use HSTNN-IB7L.

Q: What are the main specs and cycle life of the TA03XL battery?

A: It features 51Wh capacity, 11.55V, 3 cells, and is brand new with up to 500 recharge cycles.

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