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Rectangular black lithium-polymer laptop battery SR03XL 52.5Wh 11.55V

NShi

NShi SR03XL laptop battery 52.5Wh 11.55V

SKU CH-J0XD-PDX38

Replacement lithium-polymer battery delivering 52.5 Wh at 11.55 V for compatible HP Pavilion 15-CX laptops

  • Battery TypeLithium Polymer
  • 5 Wh capacity delivers extended runtime
  • 55 V lithium-polymer chemistry matches original spec
  • Tested for full charge and discharge cycles
  • Direct replacement for HP Pavilion 15-CX series
  • 4550 mAh rating supports reliable daily use

HP Pavilion 15-CX compatible replacement

This NShi SR03XL lithium-polymer battery is built for HP Pavilion 15-CX and 15-CX0020NR laptops. It matches the original 52.5Wh capacity and 11.55V voltage so the system recognises it as a direct substitute for part numbers L08855-855, HSTNN-IB8L and HSTNN-DB8Q.

Installation requires care and cycling

The pack ships as a single battery without fitting instructions; the supplier notes that professional installation is recommended and that improper handling voids their liability. A new cell reaches full runtime after two or three complete charge and discharge cycles, and using a low-quality charger will shorten its service life.

52.5Wh capacity decides fit

Capacity of 52.5Wh at 11.55V is the single figure that determines whether this unit will physically and electrically replace the original. Buyers whose machines need a different watt-hour rating or voltage should not order this part.

Highlights

  • 5 Wh capacity delivers extended runtime
  • 55 V lithium-polymer chemistry matches original spec
  • Tested for full charge and discharge cycles
  • Direct replacement for HP Pavilion 15-CX series
  • 4550 mAh rating supports reliable daily use

Specifications

Battery TypeLithium Polymer

Questions about this item

How many full charge cycles until the 4550 mAh SR03XL battery reaches peak capacity?

The lithium-polymer pack hits its best performance after 2 or 3 complete charge-and-discharge cycles, then delivers the rated 52.5 Wh at 11.55 V.

What is the first limit you hit when the SR03XL runs continuously at full load?

The hard ceiling is the 52.5 Wh energy capacity; once those watt-hours are used the battery must be recharged before the laptop can keep running.

Does the SR03XL get noisy or hot during all-day use?

The pack has no moving parts so it stays silent, and normal operating warmth is expected; using a low-quality charger can increase heat and shorten overall life.

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