ASUS F442U A480U R419U F442UR A419 Replacement Battery C21N1638 | 7.7V 4940mAh

ASUS F442U A480U R419U F442UR A419 Replacement Battery — C21N1638

Restore full battery performance to your ASUS laptop with this 100% new replacement battery, built to original specifications.

Specifications

• Battery Type: Li-ion
• Voltage: 7.7V
• Capacity: 4940mAh
• Recharge Cycles: 500+
• Operation Time: Approx. 2–4 hours (varies by usage)

Part Numbers

C21N1638

Compatible Models

• ASUS F442U
• ASUS A480U
• ASUS R419U
• ASUS F442UR
• ASUS A419

Tip: Check the bottom label of your laptop 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