2-power 2P-B31N1429 - akku - 3 400 mAh 11,4 V

Keep your laptop running through long workdays and travel with the 2-POWER 2P-B31N1429 replacement battery. Built for professionals who rely on their devices away from power outlets, this 3-cell lithium-ion pack delivers 3400 mAh at 11.4 V, providing consistent energy for meetings, field work, or study sessions. It matches the fit and function of the original battery, so installation is straightforward and your laptop remains portable.

Key specifications

• Battery technology: Lithium-Ion (Li-Ion)
• Capacity: 3400 mAh
• Voltage: 11.4 V
• Energy: 38.76 Wh
• Number of cells: 3
• Colour: Black
• Rechargeable: Yes
• Protection: Overcharge, over-discharge, overcurrent, short-circuit
• Operating temperature: 0°C to 45°C
• Storage temperature: -20°C to 60°C
• Certifications: CE, RoHS

Why choose it

This battery is engineered to restore your laptop's mobility without the cost of a new machine. The integrated protection circuit guards against common electrical faults, extending the lifespan of the cells. With a capacity that mirrors the original, you can expect similar runtime between charges, keeping you productive wherever you work.

Ideal use cases

• Replacing a worn-out or swollen original battery
• Keeping a spare battery for long flights or remote work
• Refurbishing a used laptop for resale or donation
• Ensuring uninterrupted power during presentations or fieldwork

Good to know

For best results, fully charge and discharge the battery a few times after installation to calibrate the power meter. Avoid exposing the battery to extreme heat or cold, and store it at around 50% charge if not used for extended periods. The battery is compatible with specific laptop models that originally use the B31N1429 battery part number.