Battery Origin Storage Dell BTRY 42WHR 3C LITH 3400mAh 42Wh 11.4V Black

The Origin Storage Dell BTRY 42WHR 3C LITH is a replacement lithium-ion battery with a rated capacity of 3400 mAh (42 Wh) and a nominal voltage of 11.4 V. It is designed as a compatible power source for Dell laptops that accept this battery form factor and connector, offering stable voltage and sustained runtime for mobile use.

Advantages

This Dell-compatible lithium-ion battery provides a balance of capacity and voltage for extended portable operation. Its 3400 mAh capacity and 42 Wh energy rating supply consistent power under normal workloads, while the lithium-ion chemistry ensures cyclical stability and relatively low self-discharge. The black casing matches typical laptop aesthetics and the product conforms to the specified Dell MPN and EAN for compatibility reference.

Suitable for

• Replacing a worn or failing Dell laptop battery with compatible form factor
• Extending mobile runtime for travel, meetings, or remote work
• Maintaining power during periods without access to AC charging

Key specifications

• Battery technology: Lithium‑Ion (Li‑Ion)
• Capacity: 3400 mAh
• Energy: 42 Wh
• Voltage: 11.4 V
• Colour: Black
• Brand / MPN: Dell / 0T2JX4
• EAN: 5715063012130

How to use

Power off the laptop and disconnect any external power source. Remove the existing battery following the laptop manufacturer’s instructions, then insert the Origin Storage Dell BTRY 42WHR 3C LITH into the battery bay until it clicks or locks in place. Reconnect AC power and charge the battery fully before first use to ensure the battery management system calibrates correctly.

Recommendations

Store and use the battery in a dry environment at moderate temperatures. Avoid short circuits and physical damage. If the battery shows swelling, overheating, or abnormal behavior, stop using it and replace it. Use the battery only in compatible Dell models and follow manufacturer safety guidelines for disposal and recycling.