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Rectangular black laptop battery with label showing 11.31V 41WH

PISKEKAT

PISKEKAT C31N1339 laptop battery 11.31V 41WH for Asus ZenBook UX303 series

SKU CH-C8J5-XD6BZ

Replacement battery for Asus ZenBook UX303 series delivering 11.31V and 41WH with overcharge, overdischarge and temperature protection

  • Battery TypeLaptop Batteries
  • Reliable power for ZenBook UX303 series with 11.31 V 41 Wh capacity
  • Built-in overcurrent, overcharge, overdischarge and temperature protection for safe operation
  • Replaces original part numbers C31N1339, 0B200-9300000 and 3ICP7/55/90 exactly
  • Quality cells and circuit board deliver fast charging and low power consumption
  • Rated for up to 500 recharge cycles meeting OEM standards

Replacement battery for ZenBook UX303 series

This 11.31V 41WH lithium-ion battery replaces the original C31N1339 unit in Asus ZenBook UX303, UX303L, UX303LA, UX303LB, UX303LN, UX303UB, TP300L, Q302L and Q302LA models. It is built for owners who need a direct swap when the factory pack no longer holds a useful charge. Buyers with other Asus ultrabooks or non-Asus laptops cannot use this pack.

Internal connector matches the factory layout

The pack uses the same 3ICP7/55/90 cell arrangement and plug orientation as the OEM part so it seats in the battery bay without adapters. A common error is forgetting to disconnect the mainboard cable before removing the old pack, which can trigger a short-circuit protection lockout. The built-in circuit board handles overcurrent, overcharge, overdischarge and over-temperature safeguards automatically.

Steady output through a full workday

Rated at 41WH, the battery delivers consistent voltage across the discharge curve rather than a brief peak, supporting up to 500 recharge cycles over its service life. Temperature control circuitry prevents thermal throttling during long compile sessions or video playback. Users who routinely drain the pack below 20 percent will see the same stable runtime on cycle 300 as on cycle 12.

Highlights

  • Reliable power for ZenBook UX303 series with 11.31 V 41 Wh capacity
  • Built-in overcurrent, overcharge, overdischarge and temperature protection for safe operation
  • Replaces original part numbers C31N1339, 0B200-9300000 and 3ICP7/55/90 exactly
  • Quality cells and circuit board deliver fast charging and low power consumption
  • Rated for up to 500 recharge cycles meeting OEM standards

Specifications

Battery TypeLaptop Batteries

Questions about this item

How can I confirm the PISKEKAT C31N1339 battery is working correctly after installing it in my Asus ZenBook UX303?

After fitting the 11.31V 41WH pack, power on the laptop and verify the OS reports the design capacity near 41WH; the battery should charge to 100% without triggering over-temperature or short-circuit protection and sustain normal run-time for up to 500 recharge cycles.

What comes in the box with the PISKEKAT C31N1339 and what must I buy separately?

The package contains the 11.31V 41WH replacement battery assembled with overcurrent, anti-overcharge, anti-overdischarge and temperature-control circuitry; no tools, screws or AC adapter are included, so reuse the original hardware from your ZenBook UX303 series.

Which version of the PISKEKAT C31N1339 should I choose for my specific ZenBook model?

Select this single 11.31V 41WH version when your part number matches C31N1339, 0B200-9300000 or 3ICP7/55/90 and your laptop is a UX303, UX303L, UX303LA, UX303LB, UX303LN, UX303UB, TP300L, Q302L or Q302LA.

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