Wymisnit NP03XL 11.4V 43Wh Battery for HP Envy X360 &

Wymisnit NP03XL 761230-005 is a direct replacement 11.4V, 43Wh lithium-ion battery designed to restore portable power to compatible HP Envy X360 15 and Pavilion X360 13 models.

If your HP convertible has reduced runtime, won't hold charge, or the original battery needs replacement, this NP03XL pack provides a like-for-like substitute built from A+ cells and finished in black. It arrives brand new, factory-assembled, and includes two screwdrivers for a straightforward swap. The pack matches multiple OEM numbers so you can verify fit before buying.

How do I know this battery fits my HP laptop?

Check the model number printed on your existing battery and the laptop's service label; the NP03XL replaces several common part numbers and specific Envy and Pavilion X360 SKUs. If the original battery is labeled NP03XL or any matching compatible part number, this pack will fit and function as intended.

• Compatible with HP Envy X360 15-series models such as 15-U010DX, 15-U110DX, 15-U483CL, and many more.
• Also compatible with Pavilion X360 13-series models including 13-A010DX, 13-A012DX, 13-A013CL, etc.
• Replaces OEM part numbers like 761230-005, 760944-421, HSTNN-LB6L, TPN-Q149 and related codes.
• Important: confirm original battery model is NP03XL before replacing; two similar packs exist for X360 series.

What are the technical specs and safety features?

The Wymisnit NP03XL is a 11.4V lithium-ion battery rated at 43Wh (3720mAh) made from four A+ grade cells. It is engineered with protective circuitry to help prevent overcharge, over-discharge, over-temperature events, and short circuits—matching common OEM reliability expectations.

• Nominal rating: 11.4 volts, capacity: 43Wh / 3720mAh.
• Construction: 4 A+ grade lithium-ion cells assembled on a protected circuit board.
• Safety: overcharge, over-discharge, over-temperature and short-circuit protections included.
• Quality: CE, FCC, RoHS compliance and designed to meet OEM-like performance with up to ~500 recharge cycles.

How easy is installation and what does the package include?

Installation is intended to be user-friendly for anyone comfortable removing a few screws from the laptop base. Wymisnit supplies two precision screwdrivers to help remove the old battery and secure the new pack, eliminating the need to source tools separately.

• Package includes: one NP03XL 761230-005 battery (black) and two screwdrivers.
• Designed for direct swap-in to compatible HP models—no modification required.
• Simple steps: power down, remove bottom cover screws, unplug old battery, install new battery, reassemble.
• Follow HP guidance for battery replacement and calibrate battery after first full charge.

What warranty and support come with this replacement battery?

Wymisnit provides customer support and a two-year coverage window from the purchase date. This warranty covers manufacturing defects under normal use; keep your order details handy for faster assistance if any issue arises.

• Two-year limited warranty from Wymisnit for manufacturing faults.
• Customer support available for installation guidance and compatibility questions.
• Buy with confidence: product shipped as 100% brand new and tested prior to packing.
• Return or warranty claim instructions provided with order confirmation.

Who is this for: The Wymisnit NP03XL battery is ideal for owners of HP Envy X360 15 and Pavilion X360 13 convertibles whose original battery no longer delivers adequate runtime or shows charging faults. It's aimed at DIY users, IT technicians, and small businesses that need an affordable, OEM-compatible replacement backed by reliable safety circuitry and a two-year support window. Confirm your device’s battery part number matches NP03XL or a listed compatible code before purchase to ensure correct fit and operation.