Battery Dell H82T6 51Wh, 3‑cell replacement for compatible Dell laptops

Dell H82T6 51Wh 3-cell replacement battery is a rechargeable lithium-ion battery designed to restore portable power in compatible Dell laptops. With a capacity of 51Wh and a 3-cell configuration, this battery is intended to provide reliable runtime for everyday tasks such as document editing, web browsing and light multimedia playback. It serves as a direct replacement option when the original battery shows significant wear, reduced runtime or fails to hold charge.

Advantages

The battery offers a balance of capacity and compact size suitable for mobile productivity, delivering consistent power for typical office and home use. Its 3-cell design contributes to a lighter weight and simplified installation process while the 51Wh capacity supports several hours of mixed usage depending on system configuration and workload. As a replacement unit, it helps avoid unexpected shutdowns and can restore laptop mobility without requiring a full system service.

Suitable for

• Office work and document editing
• Web browsing and email
• Video playback and light multimedia
• Travel and mobile use where mains power is not available

Key specifications

• Battery type: rechargeable lithium-ion
• Capacity: 51Wh
• Cell count: 3 cells
• Form factor: laptop internal replacement battery
• Typical use: daily computing tasks and light multimedia

How to use

Power off the laptop and disconnect the mains adapter before starting replacement. Remove the back cover or battery compartment access panel according to the laptop manufacturer instructions, taking care to follow anti-static precautions. Disconnect the depleted battery connector from the motherboard and remove any retaining screws or brackets holding the old battery. Install the replacement battery in the same orientation, secure any screws or brackets, reconnect the battery cable, replace the cover and power on the laptop. Verify battery recognition and charge status in the operating system power settings.

Recommendations

Charge the battery fully before first use and calibrate charge level periodically by allowing a full charge-discharge cycle. Store the battery at around 40–60% charge if unused for extended periods and avoid exposing the battery to extreme temperatures. Use the laptop manufacturer’s charging adapter and follow safety guidelines for lithium-ion batteries to ensure reliable operation and long service life.