ASUS ZenBook UX431F BX431 S4500F S4500FL U4500F U4500FL Replacement Battery C21N1833 | 7.7V 47Wh

ASUS ZenBook UX431F / BX431 / S4500F / U4500F Replacement Battery — C21N1833

Restore reliable battery life to your ASUS ZenBook or VivoBook with this 100% new replacement battery, built to ASUS’s original specifications.

Specifications

• Battery Type: Li-ion
• Voltage: 7.7V
• Capacity: 47Wh
• Recharge Cycles: 500+
• Operation Time: Approx. 2–4 hours (varies by usage)
• Part Number: C21N1833

Compatible Models

• ASUS VivoBook S4500F
• ASUS VivoBook S4500FL
• ASUS VivoBook U4500F
• ASUS VivoBook U4500FL
• ASUS ZenBook UX431F
• ASUS ZenBook BX431

Tip: Check the bottom label of your laptop or ASUS MyASUS app to confirm your model before purchasing.

Why Choose This Battery?

• ✅ 100% new — never refurbished or reused cells
• ✅ Built-in protection against overcharge, over-discharge, and short circuit
• ✅ Plug-and-play replacement
• ✅ 1-year warranty included