2-power 2P-B21N1329 - Akku - Batterie 4.150 mAh 7,6 V

When your laptop battery no longer holds a charge, productivity grinds to a halt. The 2-Power 2P-B21N1329 replacement battery restores reliable portable power, so you can work, study, or play without being tethered to a wall outlet. Engineered as a direct replacement for select laptop models, this 4-cell lithium-ion pack delivers 4150 mAh at 7.6 V, providing the energy your device needs to run through meetings, lectures, or long flights.

Who is it for

This battery is ideal for professionals, students, and frequent travelers who depend on their laptop throughout the day. If your original battery has degraded—showing shorter runtime, unexpected shutdowns, or failure to charge—this unit offers a cost-effective way to extend the life of your machine without replacing the entire laptop. It is also a smart choice for IT departments managing fleets, as it restores full mobility to aging devices.

Main features

• 4150 mAh capacity and 7.6 V output for dependable runtime
• 4-cell lithium-ion chemistry for a balance of weight and power
• Integrated protection against overcharge, over-discharge, and short circuits
• Internal form factor for a seamless fit inside your laptop
• Rechargeable design for hundreds of charge cycles
• Black colour matches most laptop interiors

Specifications

• Battery technology: Lithium-Ion (Li-Ion)
• Capacity: 4150 mAh
• Voltage: 7.6 V
• Energy: 31.54 Wh
• Number of cells: 4
• Rechargeable: Yes
• Colour: Black
• Form factor: Internal
• Protection: Overcharge, over-discharge, short circuit
• Certifications: CE, RoHS (typical)
• Operating temperature: 0°C to 45°C
• Storage temperature: -20°C to 60°C

Tips

To maximise battery lifespan, avoid exposing your laptop to extreme heat or cold, and try to keep the charge level between 20% and 80% for daily use. When storing the battery for an extended period, charge it to around 50% and keep it in a cool, dry place. Always verify compatibility with your specific laptop model before purchase, and follow the manufacturer's installation instructions carefully.