DMKAOLLK CS03XL battery front view for HP EliteBook, reliable replacement power
CS03XL battery side view showing compact 4-cell Li-polymer design for portability
CS03XL packaging from DMKAOLLK, brand-new HP replacement
Included accessories with CS03XL battery: screws and manual for installation
CS03XL model label with HP compatibility information
CS03XL rear connection pins for secure laptop power delivery

DMKAOLLK

DMKAOLLK CS03XL Laptop Battery for HP EliteBook 840/850/745/755 G3/G4 | 48Wh 4-Cell Replacement

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

$33.29

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

Overview

The DMKAOLLK CS03XL laptop battery is a practical replacement option for select HP business notebooks, including the EliteBook and ZBook lines. Crafted with Li-polymer cells, it operates at 11.4V and 48Wh, delivering a balanced energy density in a compact 4-cell design. This power solution is designed to help you maintain productivity on the go, whether you’re commuting, traveling, or working between meetings.

Key compatibility and specs

  • Compatible with HP EliteBook models such as 745 G3/G4, 755 G3/G4, 840 G3/G4, and 850 G3/G4, as well as HP ZBook 15u G3/G4
  • Voltage and capacity: 11.4V, 48Wh, 4-cell Li-polymer construction for a slim profile
  • Part numbers and variants addressed include CS03XL and related IDs such as HSTNN-I33C-4, HSTNN-IB6Y, HSTNN-UB6S, and 800231-141/800513-001
  • Quality and safety: CE, FCC, ROHS, and UL certified; brand-new from the manufacturer
  • Recharge cycles: designed to handle up to 1000 recharge cycles, depending on usage

What you get

  • CS03XL Battery
  • Two screwdrivers for installation
  • User manual with basic safety and setup notes

Real-world use and installation tips

On a busy workday, a fresh CS03XL can provide steady power for presentations, coding sessions, or fieldwork. The included screwdrivers simplify replacement, and the compact form fits neatly into many HP notebooks. While the exact runtime depends on your device and workload, users may experience longer intervals between charges with this replacement battery.

Note that while this battery is designed to meet common compatibility and safety standards, actual performance may vary by device, usage patterns, and charging habits. Treat this as a reliable upgrade option that could extend notebook uptime in daily scenarios rather than a guaranteed outcome.

FAQ

Q: Is this CS03XL battery compatible with my HP EliteBook 745/755/840/850 G3/G4 and ZBook 15u G3/G4?

A: Yes. It supports multiple listed HP models and matches common CS03XL variants.

Q: What is included in the box with the CS03XL battery?

A: The CS03XL battery, plus two screwdrivers and a user manual for installation.

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