2-power Main Battery Pack Replaces L11421-2C2 - Batterie - 3.440 mAh

When your HP Pavilion laptop starts losing charge faster than it should, the 2-Power ALT283639B battery steps in as a direct replacement for the original HP L11421-2C2 pack. Unlike generic third-party cells that often underperform or fail early, this unit is built to match the exact voltage and capacity of the original, so your laptop runs as reliably as it did on day one. With 3440 mAh and 39.72 Wh, it delivers consistent power for everyday tasks, from spreadsheets to streaming, without unexpected shutdowns.

Highlights

• Direct replacement for HP L11421-2C2, HT03XL, HSTNN-DB8R, HSTNN-IB8O, HSTNN-LB8L, HSTNN-UB7I
• 3-cell Lithium-Ion construction with 11.55 V output for stable performance
• Integrated overcharge, over-discharge, overcurrent, and short circuit protection
• Compatible with HP Pavilion 14, 15, and 17 series laptops
• Black internal battery designed for a seamless fit

In daily use

Installing this battery restores your laptop's mobility. No more being tethered to a wall outlet during meetings or classes. The 3440 mAh capacity provides enough runtime for several hours of mixed use, and the Li-ion chemistry holds its charge well even after hundreds of cycles. Because it's an internal battery, it sits flush inside the chassis, preserving the slim profile of your Pavilion. The built-in protection circuits guard against common battery hazards, giving you peace of mind whether you're working on the go or leaving the laptop plugged in overnight.

Full specifications

• Brand: 2-Power
• Model: ALT283639B
• Battery capacity: 3440 mAh / 39.72 Wh
• Voltage: 11.55 V
• Technology: Lithium-Ion (Li-ion)
• Number of cells: 3
• Colour: Black
• Condition: New
• Replaces: HP L11421-2C2, HT03XL, HSTNN-DB8R, HSTNN-IB8O, HSTNN-LB8L, HSTNN-UB7I
• Compatible series: HP Pavilion 14, Pavilion 15, Pavilion 17
• Protection: Overcharge, over-discharge, overcurrent, short circuit

Final note

Choose the 2-Power ALT283639B to bring your HP Pavilion back to full mobility. It's a reliable, cost-effective alternative to the original battery, with the same specifications and safety features you expect.