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Rectangular black plastic laptop battery pack with three cells and label showing 11.55V 56W

HP

HP 11.55V 56W 3-Cell Lithium-Ion Laptop Battery

SKU CH-MM82-Z42A2

Replacement 11.55 V lithium-ion battery with 56 Wh capacity and three cells for compatible HP laptops

  • CompatibilityCompatible with HP HSN-113C-5 HSN-I13C-5 HSTNN-DB8K HSTNN-LB
  • Battery TypeLithium-Ion
  • Reliable power from 11.55V lithium-ion cells
  • Extended runtime with 56W high-capacity design
  • Balanced portability using premium 3-cell construction
  • 100% compatibility with listed HP part numbers
  • CE and RoHS certified for safety compliance

11.55V 56W 3-Cell Lithium-Ion Battery

This replacement battery delivers 11.55V and 56W capacity using premium 3-cell lithium-ion technology. It is designed for HP laptops requiring the HSN-113C-5, HSN-I13C-5, HSTNN-DB8K, HSTNN-LB8H, or HSTNN-UB7T part numbers. The unit carries CE and RoHS certifications for safety and environmental compliance.

Check HP Part Number Before Ordering

Verify that your original battery carries one of the exact part numbers listed above to ensure correct fit and electrical match. This unit is not suitable for HP models using different voltage ratings, cell counts, or connector layouts. Buyers needing a different voltage, a higher watt-hour rating, or a larger cell configuration should look elsewhere.

Sustained Discharge Performance

The lithium-ion cells are engineered to maintain consistent voltage output during extended work or streaming sessions rather than only in short bursts. Rigorous testing targets long-term reliability so capacity remains stable over many charge cycles. A one-year replacement warranty covers defects in materials or workmanship.

Highlights

  • Reliable power from 11.55V lithium-ion cells
  • Extended runtime with 56W high-capacity design
  • Balanced portability using premium 3-cell construction
  • 100% compatibility with listed HP part numbers
  • CE and RoHS certified for safety compliance

Specifications

CompatibilityCompatible with HP HSN-113C-5 HSN-I13C-5 HSTNN-DB8K HSTNN-LB8H HSTNN-UB7T
Battery TypeLithium-Ion

Questions about this item

What comes in the box and do I need any extra parts to install this 11.55V 56W 3-cell battery?

The package contains the replacement battery only. No additional cables, tools or adapters are required; it fits directly into the HP laptop's battery bay.

How do I choose between the listed part numbers such as HSN-113C-5, HSTNN-DB8K and HSTNN-LB8H?

All listed part numbers — HSN-113C-5, HSN-I13C-5, HSTNN-DB8K, HSTNN-LB8H and HSTNN-UB7T — refer to the same 11.55V 56W 3-cell specification, so any match confirms the correct unit.

What does the 56W rating mean for daily runtime on my HP laptop?

The 56W capacity indicates the total energy the 3-cell pack can store; actual runtime varies with screen brightness, workload and power settings but represents a high-performance replacement for the original battery.

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