Laptop battery HP HSTNN-DB8K — 3 cells, 56 Wh, 4.85 Ah

Replacement lithium-ion laptop battery compatible with HP notebooks, model HSTNN-DB8K. This 3-cell pack provides 56 Wh of energy and a nominal charge of 4.85 Ah to restore portable runtime for compatible HP systems. The battery is intended as a direct replacement or spare to return device operation to original-spec battery life and support mobility for work, travel and daily use.

Advantages

The battery offers a compact 3-cell design with a 56 Wh energy capacity, balancing runtime and weight for portable use. It is manufactured to meet typical HP power and charging characteristics and supports standard lithium-ion charging profiles. Using an original-spec replacement can help maintain device stability and predictable battery calibration compared with generic alternatives.

Suitable for

• Restoring laptop runtime for compatible HP notebook models
• Carrying as a spare battery for travel and field use
• Replacing worn or degraded internal battery to extend device service life
• Use in environments where consistent, original-spec battery performance is required

Key specifications

• Battery chemistry: Lithium-ion
• Number of cells: 3 cells
• Energy capacity: 56 Wh
• Nominal charge (capacity): 4.85 Ah
• Typical use: Internal notebook battery for portable power

How to use

Power down the notebook and disconnect the AC adapter before removing the old battery. Follow the device manufacturer's instructions to access the battery compartment or remove the rear cover if applicable. Install the replacement battery, ensuring correct alignment and secure connection to the battery connector. Reattach any covers, reconnect the AC adapter and charge the new battery to full capacity before regular use to allow the system to calibrate remaining runtime indicators.

Recommendations

For prolonged battery life, keep the battery between 20% and 80% charge when practical, avoid prolonged storage at full charge or deep discharge, and store the battery in a cool, dry place. Always use the notebook's original or manufacturer‑approved chargers and follow safety guidance for lithium-ion cells.