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

HP

HP TT03XL TT03056XL 933322-855 932824-421 11.55V 56W 3-Cell laptop battery

SKU CH-KR1T-4E55T

Replacement lithium-ion laptop battery delivers 11.55 V and 56 Wh across three cells for compatible HP models

  • Battery typeLithium-Ion
  • Compatible withCompatible with HP TT03XL TT03056XL 933322-855 932824-421 93
  • Lithium-ion chemistry provides stable 11.55 V output
  • 56 Wh capacity supports extended mobile sessions
  • Three premium cells engineered for long-term reliability
  • 100 % compatibility with HP part numbers 933322-855 and 932824-421
  • CE and RoHS certified for safety and environmental compliance

11.55V 56W 3-Cell HP laptop battery

This replacement battery supplies 11.55 volts and 56 watt-hours from three lithium-ion cells. It is built for HP notebooks that use the TT03XL or TT03056XL part numbers. The unit is new and carries CE and RoHS certification for safety and environmental compliance.

Lithium-ion voltage and cell-count limits

Lithium-ion chemistry fixes the nominal voltage at 11.55 volts, so the pack cannot be used in laptops that require a different voltage. The three-cell layout determines the physical size and the 56 watt-hour capacity, meaning run time is bounded by that energy rating.

100% compatibility with listed HP part numbers

The battery is validated for 100% fit with HP part numbers 933322-855, 932824-421, 932824-1C1 and 932824-2C1. It will not work in machines that need a different part number or a different cell configuration.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $36.99
Pricier than about 66% of the 27,790 comparable items (median $30.99).

Specifications

Power
Battery typeLithium-Ion
Compatibility
Compatible withCompatible with HP TT03XL TT03056XL 933322-855 932824-421 932824-1C1 932824-2C1

Questions about this item

Which HP part number matches my laptop: TT03XL, TT03056XL, 933322-855, 932824-421, 932824-1C1 or 932824-2C1?

This battery is compatible with all six listed part numbers, so choose the one printed on your original battery or in your laptop's service manual.

What does the 56 Wh capacity deliver in daily use?

The 56 Wh rating means the pack stores enough energy for several hours of typical office work or media playback on a supported HP laptop.

Does the 11.55 V output limit which HP models can use this battery?

Yes, only HP laptops designed for an 11.55 V battery will work correctly with this 3-cell lithium-ion pack.

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