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Rectangular black lithium-ion laptop battery with three cells

TOPKTEAM

TOPKTEAM SR03XL 11.55V 52.5Wh 4550mAh 3-cell laptop battery

SKU CH-18HT-XCV9G

A 3-cell lithium-ion battery rated at 11.55 V and 52.5 Wh, compatible with HP Pavilion 15-CX series laptops

  • Battery typeLithium-Ion
  • Genuine replacement restores original runtime
  • 5 Wh capacity powers extended sessions
  • 55 V output matches factory specification
  • Three lithium-ion cells deliver stable discharge
  • Compatible with HP Pavilion 15-CX series laptops

Genuine replacement for HP Pavilion 15-CX

This 11.55V lithium-ion pack restores original run-time to compatible HP Pavilion 15-CX series notebooks. It delivers 52.5Wh capacity across three cells in a black housing. The SR03XL part number matches HP part numbers L08855-855 and HSTNN-IB8L for direct substitution.

Fits 15-CX chassis without modification

The battery slides into the existing bay using the stock latch and connector; no adapter cables or firmware updates are required. Replacing the worn pack frees the notebook from permanent AC tethering and restores mobile use. Compatible part numbers include TPN-C133, TPN-C134 and TPN-Q194.

Steady output during long sessions

Li-ion chemistry maintains stable voltage across the discharge curve, avoiding the sharp drop-off seen in aged cells. The 4550mAh rating supports extended workloads such as video playback or document editing without unexpected shutdown. Three-cell construction balances capacity and thermal behaviour for sustained daily use.

How it compares

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

Price $50.99
Pricier than about 82% of the 27,790 comparable items (median $30.99).

Specifications

Power
Battery typeLithium-Ion

Questions about this item

How long will the 52.5 Wh capacity last before the battery needs recharging under sustained load?

The 52.5 Wh rating indicates total energy storage; actual runtime depends on the laptop's power draw during sustained use.

Does the 11.55 V lithium-ion pack run hot or make noise during all-day operation?

The battery is a passive 3-cell Li-ion unit with no moving parts; it produces no audible noise and minimal heat under normal discharge.

Which HP Pavilion model must I already own for this SR03XL to fit and function?

This battery is compatible with the HP Pavilion 15-CX0058WM and other 15-CX series laptops listed in the part-number match.

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