Hp EliteBook CS03XL 840-G3 840-G4 Original Laptop Battery

HP Original CS03XL Replacement Laptop Battery – EliteBook 840 G3 / 840 G4

Restore Your HP EliteBook's Portable Power

Keep your HP EliteBook 840 G3 or 840 G4 working with the CS03XL replacement laptop battery, designed for compatible HP business laptops.

If your existing battery drains too quickly, struggles to hold charge, or causes your laptop to shut down unexpectedly, replacing a deteriorated battery can help restore portable computing.

The CS03XL battery is designed for internal installation and is suitable for users who want to maintain their existing HP EliteBook for business, school, office work and everyday computing.

46Wh Rechargeable Lithium-Ion Battery

The documented CS03XL battery features an 11.4V nominal voltage, 46Wh energy capacity and three-cell rechargeable lithium-ion construction.

It supplies portable power for everyday activities including Microsoft Office, school assignments, business records, online meetings, email communication and internet browsing.

Actual battery backup depends on battery health, system settings, screen brightness, running applications and the overall condition of the laptop.

Compatible HP EliteBook Laptop Models

The CS03XL battery family supports selected configurations of:

• HP EliteBook 840 G3
• HP EliteBook 840 G4
• HP EliteBook 745 G3 / G4
• HP EliteBook 755 G3 / G4
• HP EliteBook 848 G3 / G4
• HP EliteBook 850 G3 / G4
• HP ZBook 15u G3 / G4
• Selected HP mobile thin-client models

Compatibility should be confirmed using the original battery part number, connector position and physical dimensions.

Compatible Battery Part Numbers

CS03XL, CS03, CS03046XL, CS03046XL-PL, 800513-001, 800231-141, 800231-1C1, 800231-271, 800231-2C1, HSTNN-IB6Y, HSTNN-UB6S, HSTNN-DB6U and T7B32AA.

These part numbers are provided as compatibility references. They do not establish that every similarly labelled battery is manufactured by HP.

Internal Battery Design

The CS03XL is installed inside compatible HP EliteBook laptops.

Replacement requires opening the laptop's bottom cover, disconnecting the existing battery cable and carefully installing the compatible replacement.

Professional installation is recommended if you are unfamiliar with laptop repairs.

When Should You Replace the Laptop Battery?

Consider replacing your battery if:

• Battery backup has become unusually short.
• The laptop shuts down unexpectedly when unplugged.
• Battery percentage decreases rapidly.
• Battery diagnostics show deterioration or failure.
• The battery no longer charges or holds sufficient power.
• The original battery is swollen or physically damaged.

Charging problems can sometimes result from a faulty adapter or charging circuit. Proper diagnosis is recommended before replacement.

Technical Specifications

• | Feature | Specification |
• |---|---|
• | Product | HP CS03XL Laptop Battery |
• | Compatible Brand | HP |
• | Battery Model | CS03XL |
• | HP Spare Number | 800513-001 |
• | HP Accessory Number | T7B32AA |
• | Battery Technology | Lithium-Ion Polymer |
• | Nominal Voltage | 11.4V |
• | Energy Rating | 46Wh |
• | Approximate Capacity | 4,030mAh |
• | Battery Cells | 3 |
• | Installation | Internal |
• | Colour | Black |
• | Primary Compatibility | HP EliteBook 840 G3 / 840 G4 |
• | Rechargeable | Yes |
• | Condition | Original/OEM only if authenticity verified |
• | Warranty | According to actual seller policy |
• | Package Contents | One battery unless otherwise specified |
• Installation and Safety
• Shut down the laptop completely and disconnect the charger before opening the computer.
• Compare the new battery's part number, voltage, electrical connector, mounting points and physical dimensions with the original.
• Never puncture, bend, crush, overheat or short-circuit lithium-ion batteries. Do not install swollen, leaking or visibly damaged batteries.
• For safe installation, use the manufacturer's servicing instructions or engage a qualified technician.
• Dispose of the old battery through an appropriate battery recycling service.
• Why Choose the HP CS03XL Replacement Battery?
• A correctly matched CS03XL battery can help extend the useful life of your HP EliteBook 840 G3 or 840 G4 without replacing the entire laptop.
• The compact three-cell construction and documented 46Wh energy capacity provide a practical replacement option for compatible HP business laptops.
• Whether your laptop is used for office administration, academic assignments, business activities, online learning or everyday computing, replacing a worn-out battery can help restore the convenience of working away from the charger.

HP CS03XL Original Laptop Battery – Rechargeable Replacement Power for Compatible HP EliteBook 840 G3 and 840 G4 Laptops.