We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular black laptop battery with label showing 11.55V 55.8Wh

PISKEKAT

PISKEKAT LK03XL 55.8Wh 11.55V laptop battery

SKU CH-X4JY-4WECX

Replacement lithium-ion battery rated 11.55 V and 55.8 Wh for HP Envy x360 15-inch and 17-inch convertible models

  • Battery typeLaptop Batteries
  • 8 Wh capacity supports long unplugged sessions
  • 55 V Li-ion chemistry delivers stable power output
  • Replaces LK03XL and multiple HP part numbers
  • Fits HP Envy x360 15-inch and 17-inch convertible models
  • Brand-new cells with integrated smart protection chip

Replacement battery for HP Envy X360 15

This lithium-ion battery delivers 55.8 Wh at 11.55 V with a 4835 mAh rating. It replaces part numbers including LK03XL, L09281-855 and HSTNN-LB7U. The unit is brand new and built with quality cells and a smart protection chip.

Fits 15-inch and 17-inch convertible models

Compatible with HP Envy X360 15 BP, BQ, CN and CP families plus 17 AE, BW and CE families. It installs directly into the existing battery bay without extra cables or adapters. The design restores original runtime for mobile workloads.

Steady output under continuous use

The integrated smart chip regulates voltage and temperature during extended sessions. Li-ion chemistry maintains consistent capacity across charge cycles. The pack is engineered to sustain performance through daily charging without rapid degradation.

How it compares

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

Price $36.99
Pricier than about 66% of the 27,790 comparable items (median $30.99).

Specifications

Power
Battery typeLaptop Batteries

Questions about this item

How long will the 55.8Wh capacity last before the battery needs recharging under continuous load?

The 55.8Wh lithium-ion pack delivers 4835mAh at 11.55V; actual runtime depends on the laptop's power draw, screen brightness and workload.

Does the smart chip and Li-ion chemistry keep heat and noise low during all-day operation?

The battery uses Li-ion cells with an integrated smart chip for thermal management; it has no moving parts so it runs silently and stays within normal operating temperatures.

Which HP Envy X360 models are confirmed compatible with part numbers LK03XL and L09281-855?

This battery replaces LK03XL, L09281-855, 916814-855 and other listed part numbers for HP Envy X360 15-bp, 15-bq, 15-cn, 15-cp, 17-ae, 17-bw and 17-ce series laptops.

More in Laptop Chargers & Batteries

Similar items