Battery pack HP for EliteBook 840 G5 11.55V 4113mAh HSTNN-IB8C

Replace or spare battery pack compatible with HP EliteBook 840 G5. Rated at 11.55 V and 4113 mAh, this battery pack is designed as an original-equivalent power source to restore mobile runtime for the laptop. It is intended for direct swap into compatible devices and supports typical office workflows and extended use between charges.

Advantages

This battery pack offers a direct-fit form factor and matching voltage and capacity to maintain system stability and battery reporting. It enables restoration of full-charge runtime for mobile work without requiring system reconfiguration. The unit is lightweight, designed for safe integration with the laptop's charging circuitry, and compatible with standard charging cycles and power management features of the EliteBook series.

Suitable for

• Replacing degraded or worn original battery in HP EliteBook 840 G5
• Keeping a spare battery for travel or extended field work
• Maintaining reliable battery life for office applications and web browsing
• Swapping into compatible systems during repairs or refurbishments

Key specifications

• Nominal voltage: 11.55 V
• Rated capacity: 4113 mAh
• Chemistry: rechargeable lithium-ion cells
• Form factor: internal laptop battery, direct-replacement design
• Compatibility: designed for HP EliteBook 840 G5 series laptops

How to use

Power down the laptop and disconnect any external power sources before replacing the battery. Remove the service access panel and locate the existing battery assembly; disconnect its connector from the motherboard, then remove the retaining screws or clips. Install the replacement battery by aligning it in the same position, secure it with the original fasteners, and reconnect the battery cable. Refit the access panel, reconnect external power, and allow the battery to charge fully before normal use to ensure correct calibration of charge reporting.

Recommendations

For prolonged battery life, avoid storing the battery fully discharged for extended periods and keep the laptop firmware and power management drivers up to date. Use the manufacturer's recommended charging equipment and observe safe handling practices for lithium-ion batteries, including avoiding exposure to extreme heat or physical damage.