Laptop lithium-ion battery HP 2850 mAh model 805047-222

Rechargeable lithium-ion laptop battery by HP with 2850 mAh capacity, designed as a direct replacement for compatible HP notebooks to restore portable power and extend runtime. The battery provides a compact power source for on-the-go productivity, travel, and as a spare to prevent unexpected shutdowns. It is intended for users who need a reliable, replaceable energy module that matches the physical and electrical requirements of supported laptop models.

Advantages

This HP lithium-ion battery offers a balance of capacity and size, delivering 2850 mAh to support typical mobile work sessions without adding significant weight. As a direct replacement battery it is manufactured to align with the connector layout and voltage profile required by compatible HP notebooks, enabling straightforward installation and safe recharging. The battery chemistry provides stable discharge characteristics and reasonable cycle life when used according to manufacturer guidance.

Suitable for

• Replacing a depleted or faulty battery in compatible HP notebooks
• Extending mobile runtime for travel, meetings, or remote work
• Keeping as a spare to avoid unexpected power loss during important tasks
• Students and professionals who require consistent on-the-go uptime

Key specifications

• Battery type: Rechargeable lithium-ion
• Nominal capacity: 2850 mAh
• Compatibility: Designed for compatible HP notebook models (direct replacement form factor)
• Physical form: Pack designed to match original notebook battery compartment and connector
• Intended use: Portable power for laptops, replacement or spare unit

How to use

Power off the notebook and disconnect any external power source before removing the existing battery. Align the replacement battery with the compartment and connector, then press gently until it clicks into place according to the notebook’s instructions. Reconnect the AC adapter and charge the battery fully before initial use to calibrate the charger and battery indicator. Observe standard safety precautions for lithium-ion batteries, including using only compatible chargers and avoiding exposure to extreme temperatures.

Usage recommendations

For optimal performance and longevity, charge the battery fully before first use, avoid deep discharges when possible, store the battery at moderate charge (about 40–60%) if keeping it as a spare, and operate within the laptop manufacturer’s specified temperature range. Replace the battery if you notice significant capacity loss, swelling, or other signs of damage.