Battery HP Battery 4C 41Wh 2.8Ah Li-Ion — Rechargeable Laptop Battery, 41Wh 2.8Ah

Rechargeable Li‑Ion laptop battery HP Battery 4C with rated energy 41Wh (2.8Ah) is a replacement power unit designed for compatible HP portable computers. It uses lithium‑ion chemistry to deliver a balance of energy density and weight, providing primary power for mobile work, travel, and everyday laptop tasks. The battery is intended as a direct power source when installed and as a replaceable module to restore runtime for systems that support this form factor and voltage range.

Advantages

The HP Battery 4C 41Wh offers predictable capacity and energy output for estimating operating time and planning usage during travel or remote work. Its lithium‑ion chemistry ensures relatively high energy density while keeping weight and size manageable. As a user-replaceable battery module, it allows straightforward restoration of portable device autonomy without servicing the whole device. The battery's rated 41Wh capacity and 2.8Ah charge specification make it suitable for straightforward compatibility checks with supported HP laptop models.

Suitable for

• Replacing a depleted internal battery in compatible HP laptops
• Extending usable runtime for mobile office work and study
• Providing backup power for travel and commuting
• Testing or refurbishing portable devices that accept this battery type

Key specifications

• Battery chemistry: Lithium‑ion (Li‑Ion)
• Rated energy: 41Wh
• Nominal capacity: 2.8Ah
• Form factor: replaceable laptop battery module (internal slot type)
• Typical use: primary power source for compatible HP portable computers

How to use

Before installation, power down the laptop and disconnect any external power sources. Remove the old battery according to the laptop manufacturer's instructions and insert the HP Battery 4C 41Wh oriented to the connector and retaining mechanism. After installation, charge the battery fully using the laptop's original charger or a compatible power adapter. Calibrate battery reporting by charging to full and then discharging to a low level once or twice if required by the device firmware.

Usage recommendations

Store and operate the battery within the temperature range specified by the laptop manufacturer, avoid exposure to prolonged high temperatures, and use only approved chargers. For long-term storage, keep the battery at approximately 40–60% charge and in a cool, dry place. Dispose of or recycle the battery according to local regulations for lithium‑ion cells.