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Rectangular black lithium-ion laptop battery with three cells and label showing 11.55V 50W

HP

HP 11.55V 50W 3-Cell Laptop Battery SS03XL 933321-855 933321-852

SKU CH-HCP4-0H2P4

11.55 V lithium-ion replacement battery with three cells and 50 Wh capacity for compatible HP laptops

  • CompatibilityCompatible with HP SS03XL SS03 SS03050XL SS03050XL-PL 933321
  • Battery TypeLithium-Ion
  • Lithium-ion chemistry delivers stable 11.55 V output for consistent laptop operation
  • 50 Wh capacity extends runtime between charges for longer work sessions
  • Three premium cells balance energy density with compact form factor
  • CE and RoHS certification confirms safety and environmental compliance
  • One-year replacement warranty protects against material and workmanship defects

HP 11.55V 50W 3-Cell Replacement Battery

This 3-cell lithium-ion pack is built for HP laptops that use the SS03XL series. It supplies 11.55 volts and a 50-watt-hour rating to restore original run time. The unit matches part numbers 933321-855 and 933321-852 for a direct fit. Buyers whose machines require a different voltage or cell count cannot use this battery.

Thermal behaviour and power draw

Lithium-ion chemistry keeps heat output low during typical office work or media playback. The pack draws only the current the laptop requests, so fan activity and surface temperature stay close to factory levels. No active cooling is present on the battery itself. Efficiency remains steady across the charge cycle under normal loads.

Sustained load performance

Under continuous demand such as video rendering or large compiles the cells maintain stable voltage until the low-capacity threshold. Capacity fade follows the expected lithium-ion curve over hundreds of cycles. The one-year warranty covers defects in materials and workmanship during that period. Heavy daily cycling will reduce overall lifespan faster than light use.

Highlights

  • Lithium-ion chemistry delivers stable 11.55 V output for consistent laptop operation
  • 50 Wh capacity extends runtime between charges for longer work sessions
  • Three premium cells balance energy density with compact form factor
  • CE and RoHS certification confirms safety and environmental compliance
  • One-year replacement warranty protects against material and workmanship defects

Specifications

CompatibilityCompatible with HP SS03XL SS03 SS03050XL SS03050XL-PL 933321-855 933321-852
Battery TypeLithium-Ion

Questions about this item

How do I install the SS03XL 3-cell 11.55V battery and which step do people often miss?

Power off the laptop, unplug the AC adapter, remove the bottom case screws, disconnect the old pack's cable, connect the new battery cable firmly, refit the case and screws, then charge to 100% before first use — many forget the initial full charge.

What future replacement will the 50W lithium-ion pack need?

The battery itself is the only replaceable part; once capacity fades or the laptop shuts down early, swap in another compatible 3-cell 11.55V unit.

What limit appears first during sustained use of this 11.55V 50W pack?

The 50 Wh capacity ceiling is reached first; runtime shortens as the cells age, so heavy loads drain the pack faster over time.

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