ASUS C31N2021 Original Battery 63Wh 11.61V for Zenbook 14 Flip OLED, Zenbook 14X OLED

The ASUS C31N2021 battery price in BD at QASWATEC covers an original 63Wh (5427mAh), 11.61V Li-ion pack for the ASUS Zenbook 14 Flip OLED UP5401EA and the Zenbook 14X OLED UM5400QA, UM5401RA, UP5401ZA, UX5400ZB and UX5400ZF laptops. If your Zenbook shuts down soon after unplugging, a new C31N2021 restores its cordless runtime. The pack is black, new and tested before sale, with warranty from QASWATEC.

Key Features

• Battery type: Li-ion, new condition
• Capacity: 63Wh (5427mAh)
• Voltage: 11.61V
• Original grade ASUS C31N2021 pack
• Fits Zenbook 14 Flip OLED UP5401EA
• Fits Zenbook 14X OLED UM5400QA, UM5401RA, UP5401ZA, UX5400ZB and UX5400ZF

Compatible Laptops and Part Numbers

This battery is listed for the ASUS Zenbook 14 Flip OLED UP5401EA and the Zenbook 14X OLED UM5400QA, UM5401RA, UP5401ZA, UX5400ZB and UX5400ZF series. Check the label on your old battery before ordering, and send us a photo if you are unsure about your exact model.

Signs the Battery Needs Replacing

• The laptop shuts down soon after unplugging
• Battery time has dropped sharply
• The charge percentage will not rise
• The pack swells or the base lifts

Why Replace It Early

A tired pack leaves a thin laptop tied to a socket, and a swelling one can press on the trackpad or crack the case. Replacing it early keeps the laptop safe and portable.

What You Get

You receive a new C31N2021 battery pack with warranty from QASWATEC. Our team can check the fit for you before you buy, so you avoid a wrong order and a second trip to the shop.

Care Tips for Longer Life

• Avoid draining the pack to zero often
• Keep the vents clear of dust
• Do not leave it at 100 percent for days

A cooler pack ages slowly, which slows capacity loss.

Before You Order

Match the part number and your laptop model. Send a photo of the label if you are unsure.

Buy ASUS C31N2021 Battery from QASWATEC

QASWATEC has served laptop users from Elephant Road, Dhaka since 2010. Visit the showroom to collect your battery, or order and we will deliver across Bangladesh.