Battery pack for HP EliteBook 840 G5, 11.55V 4113mAh, replacement battery

Replacement battery pack for HP EliteBook 840 G5 with a nominal voltage of 11.55V and a capacity of 4113mAh. This battery is designed as a direct swap to restore the laptop’s mobile runtime and provide reliable backup power for everyday office tasks, travel and fieldwork. Compatible with the charging system built into the laptop, it charges through the standard power adapter and integrates mechanically and electrically as an OEM-style replacement.

Advantages

The battery delivers a specified voltage and capacity to match the power profile of the HP EliteBook 840 G5, helping to recover original battery life and reduce unexpected shutdowns. Its design supports safe charging through the laptop’s built-in charging control and offers a compact form factor that fits the laptop’s battery bay. Using a replacement battery with correct voltage and capacity ensures stable performance for typical productivity workloads and portable use.

Suitable for

• Extending mobile runtime during office work and document editing
• Providing backup power for business travel and remote meetings
• Fieldwork where mains power is not available
• Replacing a worn or failing original battery in the HP EliteBook 840 G5

Key specifications

• Nominal voltage: 11.55 V
• Rated capacity: 4113 mAh
• Form factor: internal laptop battery designed for HP EliteBook 840 G5
• Compatibility: intended for use with HP EliteBook 840 G5 models
• Charging method: charges via the laptop’s standard charging system

How to use

Power down the laptop and disconnect the power adapter before removing the depleted battery. Follow the laptop manufacturer’s instructions to access the battery compartment, remove any retaining screws or latches, and replace the old battery with the new pack, ensuring proper alignment of contacts. Reassemble the laptop, connect the power adapter and allow the battery to charge fully before first use. After installation, monitor the battery charge status via the operating system’s power management tools to confirm correct recognition.

Recommendations

For safe operation, use only the laptop’s original or manufacturer-recommended charger, avoid exposing the battery to high temperatures or moisture, and store the battery in a cool, dry place if not used for extended periods. If you observe swelling, unusual heat, or reduced performance, stop using the battery and consult authorized service for inspection and replacement.