AVACOM ASUS ZenBook 14 UX431 Li-Pol 7.7V 6150mAh 47Wh Replacement Laptop Battery

Your ASUS ZenBook 14 UX431 has served you well, but its original battery is now showing its age—unexpected shutdowns, rapid drain, or the dreaded 'plugged in, not charging' message. This AVACOM replacement battery brings your ultrabook back to full mobility, letting you work from a café, attend back-to-back lectures, or stream video on the couch without hunting for a power outlet.

Key specifications

• Battery type: Lithium Polymer (Li-Pol)
• Nominal voltage: 7.7 V
• Capacity: 6150 mAh
• Energy: 47 Wh
• Number of cells: 2-cell
• Compatibility: ASUS ZenBook 14 UX431 series (UX431DA, UX431FN, UX431FA)
• Replaces original part numbers: C21N1805, 0B200-03290000
• Installation: Internal (requires opening the laptop)
• Safety features: Overcharge, over-discharge, overcurrent, and short circuit protection
• Condition: New
• Colour: Black

Why choose it

This battery is not a generic clone—it is engineered to match the exact electrical and physical specifications of the original ASUS battery. The Li-Pol chemistry ensures a slim profile and stable voltage over hundreds of charge cycles. Built-in protection circuits guard against common hazards, giving you peace of mind during daily use. With 47 Wh of energy, you can expect runtimes comparable to a brand-new original battery, restoring your ZenBook's all-day portability.

Ideal use cases

• Reviving a ZenBook 14 UX431 that no longer holds a charge
• Keeping a spare battery for travel or remote work
• Replacing a swollen or damaged original battery
• Extending the lifespan of an otherwise perfectly functional laptop

Good to know

Installation requires basic technical skills and appropriate tools. We recommend having the battery fitted by a qualified technician to avoid damage to your device. Always disconnect the power adapter and shut down the laptop before starting. The battery is rechargeable and comes in a protective package to ensure safe transport.