Laptop battery Dell 42Wh 3-cell lithium-ion 08YPRW for compatible Dell laptops

Replacement laptop battery Dell 42Wh 3-cell lithium-ion 08YPRW is a service part designed for compatible Dell laptops to restore portable power and extend runtime. The battery delivers 42 watt-hours of capacity through a three-cell lithium-ion configuration, intended for everyday mobile use such as office tasks, web browsing and travel. It replaces worn or faulty internal batteries to help maintain device mobility and reduce the frequency of mains charging.

Advantages

This 42Wh three-cell lithium-ion battery offers a balance of capacity and compact size, providing reliable energy for standard laptop workloads without significantly increasing device weight. It is manufactured to meet compatibility and safety expectations for Dell notebook designs, supports typical battery management functions of modern laptops and can return a system to usable battery runtimes when the original cell pack no longer holds adequate charge.

Suitable for

• Everyday office work and productivity applications
• Web browsing, email and media playback on the go
• Business travel and mobile presentations
• Replacing an aged or failing internal battery in compatible Dell notebooks

Key specifications

• Battery type: lithium-ion (Li‑ion)
• Cell count: 3 cells
• Nominal capacity: 42 Wh
• Form factor: internal laptop battery designed for specific Dell notebook form
• Typical use: portable power for compatible Dell laptops

How to use

Power down the laptop and disconnect any external power source before replacing the battery. Remove the service panel or battery latch as prescribed by the laptop user manual, extract the old battery and install the replacement by aligning connectors and securing the pack into the compartment. Reassemble the cover, reconnect mains power and allow the system to detect the new battery. Calibrate the battery gauge if recommended by the manufacturer by fully charging then discharging once to improve accuracy of the runtime indicator.

Recommendations

Use the replacement battery in environments within the laptop’s specified temperature range, avoid prolonged exposure to high heat or moisture, and store the battery at partial charge if not used for extended periods. Follow Dell’s device-specific guidance for firmware and battery management updates to ensure safe operation and optimal runtime.