Home Computing Computers Laptop Accessories BatteriesReplacement Battery for HP. EliteBook 840 G1 / G2 OA04 11.1V 50Wh Li-ion

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HP Replacement Battery for HP. EliteBook 840 G1 / G2 OA04 11.1V 50Wh Li-ion

Brand: HP | Similar products from HP

KSh 3,450

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Product details

Battery Specifications – HP EliteBook 840 G1 / G2

General Information

Battery Model: OA04 / HSTNN-IB4J / HSTNN-DB4D / F3B96AA (varies by region and configuration)

Battery Type: Lithium-ion (Li-ion), rechargeable

Voltage: 11.1V or 11.4V (depending on batch)

Capacity: 50Wh to 55Wh (typically 4,000–4,500mAh)

Cell Count: 3-cell or 4-cell battery pack (depending on variant)

Form Factor: External removable battery

Color: Black

Technology: HP Long Life Battery (optional)

Compatibility

HP EliteBook 840 G1

HP EliteBook 840 G2

May also be compatible with certain models in the HP 740 and 850 series

Physical Specifications

Weight: Approx. 220–300g

Dimensions: Approx. 206 × 44 × 20 mm

Installation: Removable (tool-free access from battery bay)

Safety & Certifications

Overcharge and over-discharge protection

Certified for CE, RoHS, FCC standards (depending on vendor)

Specifications

Key Features

Replacement lithium-ion battery for HP EliteBook 840 G1 and G2 laptops. Available in 3-cell or 4-cell configurations with a capacity ranging from 50Wh to 55Wh and operating at 11.1V or 11.4V. Designed for quick replacement through the external battery bay. Provides consistent and efficient power delivery for mobile computing. Includes built-in protection against overcharging and electrical faults. Compatible with multiple models across the HP EliteBook 800 series. Lightweight and built to meet standard safety and performance certifications.