2-power Main Battery Pack Replaces L11421-271 - Batterie - 3.440 mAh

For HP laptop users tired of being tethered to a wall outlet, the 2-POWER ALT283637B main battery pack delivers a dependable 3440 mAh charge in a compact internal form factor. Unlike generic replacements that fade quickly, this pack uses quality lithium-ion cells and matches the original L11421-271 specification, so your notebook runs as intended without compatibility guesswork.

Highlights

• Direct replacement for HP part number L11421-271
• 3440 mAh capacity with 38 Wh energy for extended runtime
• 11.1 V nominal voltage, 3-cell lithium-ion construction
• Built-in overcharge, over-discharge, and short-circuit protection
• Black internal battery designed for seamless fit

In daily use

Install the ALT283637B and forget about sudden shutdowns during meetings or travel. The 3-cell layout balances weight and power, while the safety circuitry guards against common battery faults. It charges efficiently and holds a stable charge cycle after cycle, making it a practical choice for both office and field use.

Full specifications

• Brand: 2-POWER
• Model: ALT283637B
• MPN: ALT283637B
• Product type: Main battery pack
• Battery technology: Lithium-Ion (Li-ion)
• Capacity: 3440 mAh
• Energy: 38 Wh
• Voltage: 11.1 V
• Number of cells: 3
• Replaces OEM part number: L11421-271
• Compatible brand: HP
• Colour: Black
• Condition: New
• Application: Laptop
• Safety: Overcharge protection, over-discharge protection, short-circuit protection

Final note

Choose the 2-POWER ALT283637B for a reliable, cost-effective way to restore your HP laptop's mobility without compromising on safety or performance.