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Black rectangular laptop battery with connector pins

TOPKTEAM

TOPKTEAM MB04XL laptop battery 15.4V 55.67Wh 4Cell Black

SKU CH-2F5C-2ZBYV

15.4 V lithium-ion battery with 55.67 Wh capacity and four cells for HP ENVY x360 15-aq and m6-aq series laptops

  • Battery typeLithium-Ion
  • Reliable power with 15.4 V 55.67 Wh lithium-ion capacity
  • Four cells deliver consistent energy for daily workloads
  • Direct replacement for HP part MB04XL and HSTNN-UB6X
  • Fits HP ENVY x360 15-aq and m6-aq series laptops
  • Backed by a 12-month warranty for peace of mind

Replacement battery for HP Envy x360 15-aq

This lithium-ion pack delivers 15.4 volts and 55.67 watt-hours across four cells. It matches part numbers MB04XL, HSTNN-UB6X, 843538-541 and 844204-850. The unit is supplied new and carries a twelve-month warranty. It fits the listed convertible models directly.

Voltage and capacity fix the runtime ceiling

At 15.4 V and 55.67 Wh the energy reserve is set by the original design. No higher-capacity version exists in this form factor. The four-cell layout limits peak current compared with six-cell alternatives. Users needing longer unplugged time must carry a second pack.

Black hard-shell casing

The enclosure uses the same latch and screw positions as the factory battery. No case modification or shimming is required during installation. Connectors align with the motherboard header without cable strain. The finish matches the chassis colour on supported Envy x360 units.

How it compares

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

Price $41.99
Pricier than about 73% of the 27,790 comparable items (median $30.99).

Specifications

Power
Battery typeLithium-Ion

Questions about this item

Which capacity version of the MB04XL battery should I choose for my HP ENVY x360 15-aq103ng?

The MB04XL is offered in a single 55.67Wh 4-cell lithium-ion configuration at 15.4V, so there are no alternative capacities to select for this model.

What does the 55.67Wh rating mean for daily runtime on my HP x360 15-aq105ng?

The 55.67Wh rating indicates the total energy the battery can store; actual runtime depends on your laptop's power draw, screen brightness and workload, but it matches the original factory specification for the 15-aq series.

Does the 15.4V voltage limit compatibility to only certain HP part numbers like 844204-850?

The 15.4V output is the standard voltage for this battery family and matches all listed compatible part numbers including 844204-850, 844204-855 and HSTNN-UB6X across the supported ENVY x360 models.

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