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Rectangular black Li-ion laptop battery with connector cable

myVolts

myVolts SR03XL/HSTNN-DB8Q/ 11.55V 52.5Wh laptop battery

SKU CH-73F3-PB835 MPN SR03XL/HSTNN-DB8Q/

Replacement lithium-ion battery rated 11.55V and 52.5Wh for HP Pavilion Gaming and Envy x360 15-inch models

  • 55 V 52.5 Wh capacity powers extended sessions
  • 4550 mAh lithium-ion cell delivers reliable runtime
  • Replaces SR03XL HSTNN-DB8Q L08934-2C1 L08934-1B1 L08855-855 HSTNN-IB8L
  • Fits HP Envy x360 15-cn Pavilion Gaming 15-cx series
  • CE certified and tested for safety stability

Replacement battery for HP Envy x360

The myVolts SR03XL/HSTNN-DB8Q is a new 11.55 V lithium-ion pack rated at 52.5 Wh and 4550 mAh. It replaces original part numbers SR03XL, HSTNN-DB8Q, L08934-2C1, L08934-1B1, L08855-855 and HSTNN-IB8L. The unit fits HP Envy x360 15-cn and 15-cp series notebooks as well as Pavilion Gaming 15-cx models. A single battery and installation instructions are included in the package.

Upgrade from a depleted or swollen original pack

When the factory battery no longer holds a useful charge or shows physical swelling, this replacement restores full mobile runtime. The jump is worth it if your current cell reports significantly reduced capacity in the operating system or if the laptop shuts down unexpectedly under load. CE certification and manufacturer testing confirm safety and stability for daily use.

Verify the exact part number and connector layout

Before ordering, open the chassis and confirm that the original battery carries one of the listed part numbers. Compare the connector position and cable length against the product images, as slight variations can prevent a proper fit. The manufacturer advises checking these details carefully to avoid installation issues.

Highlights

  • 55 V 52.5 Wh capacity powers extended sessions
  • 4550 mAh lithium-ion cell delivers reliable runtime
  • Replaces SR03XL HSTNN-DB8Q L08934-2C1 L08934-1B1 L08855-855 HSTNN-IB8L
  • Fits HP Envy x360 15-cn Pavilion Gaming 15-cx series
  • CE certified and tested for safety stability

Specifications

No published specifications for this item yet.

Questions about this item

Does the SR03XL/HSTNN-DB8Q/ battery connector and cable length match my original HP battery exactly?

The supplier notes there may be slight differences in wire length from the original battery; verify the exact part number and compare the connector location and cable length with the product image before fitting.

What steps are required to install the SR03XL/HSTNN-DB8Q/ battery and which step do people often miss?

Power off the laptop, remove the base cover screws, disconnect the old battery connector, fit the new 11.55V 52.5Wh unit, reconnect the cable securely, then replace the cover; many forget to disconnect the old battery before removing it.

How long will the 52.5Wh Li-ion battery last before it needs replacing?

The 4550mAh Li-ion cell is rated for hundreds of full charge cycles; capacity will gradually decline, so plan replacement when runtime no longer meets your needs.

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