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We would like to respond openly to every negative review about us. Many are posted anonymously, so we cannot reach those customers directly. This open letter is our reply, and we would be grateful if you took a moment to read it.

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  • We import from 70+ official distributors. That is why you pay far less than local retail — and why delivery takes longer. We publish the date before you pay, never after.
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  • We are part of the ITwork group — ten years trading in Europe, nine stores, thousands of positive reviews.
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We are not satisfied with our review scores, and we are not going to fix them by hiding anything. We are fixing them by being faster, clearer and easier to reach than any reason to complain.

Read the full letter — photos and video of real shipments, and a straight answer to every accusation.

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2-power Main Battery Pack Replaces L11421-1C3 - Batterie - 3.440 mAh

2-power Main Battery Pack Replaces L11421-1C3 - Batterie - 3.440 mAh
2-power Main Battery Pack Replaces L11421-1C3 - Batterie - 3.440 mAh
0 reviews • Write a review
R2,450
For users of HP 14-CF, 14-DK, 15-CS, 15-DA, 15-DB, 15-DW, 17-BY, and 17-CA laptops, the 2-POWER ALT283636B battery delivers the exact fit and dependable power of the original L11421-1C3 pack, minus the original price tag. This 3-cell lithium-ion unit stores 41.7 Wh at 11.55 V, giving you a full work... Read More
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Stock Out Of Stock Code 3395964 Brand 2-POWER Model ALT283636B Warranty 2 Years

Shipping & Returns

Estimated delivery Tuesday, October 6
You will be kept updated through our detailed tracking system
Payment options
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For users of HP 14-CF, 14-DK, 15-CS, 15-DA, 15-DB, 15-DW, 17-BY, and 17-CA laptops, the 2-POWER ALT283636B battery delivers the exact fit and dependable power of the original L11421-1C3 pack, minus the original price tag. This 3-cell lithium-ion unit stores 41.7 Wh at 11.55 V, giving you a full workday of untethered productivity and the confidence of a fresh, genuine-quality cell.

Highlights

  • Direct replacement for HP L11421-1C3, HT03XL, HSTNN-DB8R, and more
  • 3440 mAh capacity with 41.7 Wh energy for extended runtime
  • Built-in overcharge, over-discharge, overheat, and short-circuit protection
  • CE, FCC, and RoHS certified for safety and environmental compliance
  • Compatible with a wide range of HP 14-inch, 15-inch, and 17-inch series

In daily use

Slide this battery into your laptop and forget about hunting for wall outlets. The 2-POWER ALT283636B maintains consistent voltage output, so your system runs smoothly whether you are crunching spreadsheets, streaming video, or editing photos. The black casing matches your device's original look, and the internal mounting keeps everything flush and secure.

Full specifications

  • Brand: 2-POWER
  • Model: ALT283636B
  • MPN: ALT283636B
  • Type: Laptop Battery
  • Battery Technology: Lithium-Ion (Li-Ion)
  • Number of Battery Cells: 3 Cell
  • Capacity: 3440 mAh
  • Energy Capacity: 41.7 Wh
  • Voltage: 11.55 V
  • Colour: Black
  • Condition: New
  • Rechargeable: Yes
  • Safety Features: Overcharge, Over-discharge, Overheat, Short-circuit protection
  • Certifications: CE, FCC, RoHS
  • Mounting Type: Internal
  • Compatible Laptop Series: HP 14-CF, 14-DK, 15-CS, 15-DA, 15-DB, 15-DW, 17-BY, 17-CA
  • Replaces Original Part Numbers: L11421-1C3, HT03XL, HSTNN-DB8R, HSTNN-IB8O, HSTNN-LB8L, HSTNN-LB8M, HSTNN-UB7I, TPN-C136, TPN-Q207, TPN-Q208, TPN-Q209, TPN-W139, TPN-W140

Final note

Choose the 2-POWER ALT283636B for a reliable, cost-effective battery that meets the same standards as your original HP pack — without compromising on safety or performance.

Specifications
Alternate rotation
HP
Brand
2-POWER
Category
Laptop Battery
Country of origin
China
HBR2 support
Lithium-Ion (Li-Ion)
Model
ALT283636B
MPN
ALT283636B
Product colour
Black
Product type
Battery
Push button
41.7 Wh
Security algorithms
Black
Type
Laptop Battery
USB Type-C output power
3 Cell
Warranty period
12 months
Price history over the last 6 months
2-power Main Battery Pack Replaces L11421-1C3 - Batterie - 3.440 mAh
Current
R2,450
Lowest
R2,411
Highest
R2,450
Change 24H
+R16   +1%
Week
+R39   +2%
Month
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