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Black rectangular lithium-polymer laptop battery with four cells and screwdrivers

DMKAOLLK

DMKAOLLK sMB04XL laptop battery 15.4V 55.67WH 4-cell

SKU CH-3BS4-X9J9R MPN sMB04XL

A 15.4 V lithium-polymer battery rated at 55.67 Wh with four cells, built to replace the MB04XL in HP Envy x360 convertible models and rated for more than 1000 cycles

  • Battery TypeLithium Polymer
  • Replacement battery with 15.4V and 55.67WH capacity
  • 4-cell lithium polymer design for reliable power
  • Over 1000 charge cycles for long-term use
  • 1:1 original fit compatible with HP Envy X360 models
  • Includes screwdrivers for straightforward self-installation

HP Envy X360 15-inch replacement battery

This lithium-polymer battery replaces the original MB04XL unit in compatible HP Envy X360 convertible laptops. It delivers 15.4V and 55.67WH across four cells for direct voltage and capacity parity. The pack includes a screwdriver set so you can swap the old module without sourcing tools separately. It targets owners of listed 15-AQ and 15-AR series machines who need a drop-in power source.

Thermal and power behaviour in daily use

The 4-cell lithium-polymer chemistry runs at the factory-specified 15.4V without additional cooling hardware. Normal operation produces no audible fan noise because the battery itself has no moving parts. Power draw follows the laptop’s own management firmware, so discharge rates match the original design envelope. The supplier rates the pack for more than 1000 charge cycles before capacity drops below useful thresholds.

Installation fit and system impact

The 1:1 mechanical design aligns with the existing battery bay screw points and connector orientation on supported Envy X360 models. No case modification, cable routing or BIOS update is required for the listed part numbers such as 844204-850 and HSTNN-UB6X. Swapping the pack restores mobile runtime without altering the laptop’s weight distribution or hinge tension. Builders needing a different voltage, cell count or form factor should look elsewhere.

Highlights

  • Replacement battery with 15.4V and 55.67WH capacity
  • 4-cell lithium polymer design for reliable power
  • Over 1000 charge cycles for long-term use
  • 1:1 original fit compatible with HP Envy X360 models
  • Includes screwdrivers for straightforward self-installation

Specifications

Battery TypeLithium Polymer

Questions about this item

How do I install the DMKAOLLK sMB04XL battery, and what step is often missed?

Power off the laptop, disconnect the AC adapter, remove the base screws, detach the old battery connector, fit the new 4-cell 15.4V 55.67WH pack, reconnect the cable, replace the base, then charge to 100 % before first use.

What maintenance or replacement will the sMB04XL need later?

The lithium-ion pack is rated for more than 1000 charge cycles; after that capacity will drop and the battery should be replaced.

What limit appears first during sustained use of the 15.4V 55.67WH battery?

Thermal throttling or capacity fade after extended heavy loads; the cell chemistry is rated above 1000 cycles before significant degradation.

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